Home / 21,132.39-29,162.44-11,572.17

Finding the Fourth Proportional to 21,132.39, 29,162.44 and 11,572.17

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Solution

The fourth proportional to 21,132.39, 29,162.44 and 11,572.17 is: 15,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.39 : 29,162.44 = 11,572.17 : x
  2. Step 2: Convert to fraction form
    21,132.39/29,162.44 = 11,572.17/x
  3. Step 3: Cross multiply
    21,132.39x = 29,162.44 × 11,572.17
  4. Step 4: Simplify right side
    21,132.39x = 337,472,713.29
  5. Step 5: Solve for x
    x = 337,472,713.29/21,132.39
  6. Step 6: Final answer
    x = 15,969.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 21,133.39, 29,163.82 and 11,573.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.