Home / 39,617.68-54,672.82-21,712.29

Finding the Fourth Proportional to 39,617.68, 54,672.82 and 21,712.29

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Solution

The fourth proportional to 39,617.68, 54,672.82 and 21,712.29 is: 29,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.68 : 54,672.82 = 21,712.29 : x
  2. Step 2: Convert to fraction form
    39,617.68/54,672.82 = 21,712.29/x
  3. Step 3: Cross multiply
    39,617.68x = 54,672.82 × 21,712.29
  4. Step 4: Simplify right side
    39,617.68x = 1,187,072,122.96
  5. Step 5: Solve for x
    x = 1,187,072,122.96/39,617.68
  6. Step 6: Final answer
    x = 29,963.19

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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.