Home / 21,240.84-29,342.34-17,019.93

Finding the Fourth Proportional to 21,240.84, 29,342.34 and 17,019.93

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Solution

The fourth proportional to 21,240.84, 29,342.34 and 17,019.93 is: 23,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.84 : 29,342.34 = 17,019.93 : x
  2. Step 2: Convert to fraction form
    21,240.84/29,342.34 = 17,019.93/x
  3. Step 3: Cross multiply
    21,240.84x = 29,342.34 × 17,019.93
  4. Step 4: Simplify right side
    21,240.84x = 499,404,572.84
  5. Step 5: Solve for x
    x = 499,404,572.84/21,240.84
  6. Step 6: Final answer
    x = 23,511.53

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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.