Home / 21,619.74-29,832.59-12,665.19

Finding the Fourth Proportional to 21,619.74, 29,832.59 and 12,665.19

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Solution

The fourth proportional to 21,619.74, 29,832.59 and 12,665.19 is: 17,476.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.74 : 29,832.59 = 12,665.19 : x
  2. Step 2: Convert to fraction form
    21,619.74/29,832.59 = 12,665.19/x
  3. Step 3: Cross multiply
    21,619.74x = 29,832.59 × 12,665.19
  4. Step 4: Simplify right side
    21,619.74x = 377,835,420.54
  5. Step 5: Solve for x
    x = 377,835,420.54/21,619.74
  6. Step 6: Final answer
    x = 17,476.41

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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.