Home / 29,387.40-40,555.10-16,640.25

Finding the Fourth Proportional to 29,387.40, 40,555.10 and 16,640.25

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Solution

The fourth proportional to 29,387.40, 40,555.10 and 16,640.25 is: 22,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.40 : 40,555.10 = 16,640.25 : x
  2. Step 2: Convert to fraction form
    29,387.40/40,555.10 = 16,640.25/x
  3. Step 3: Cross multiply
    29,387.40x = 40,555.10 × 16,640.25
  4. Step 4: Simplify right side
    29,387.40x = 674,846,716.80
  5. Step 5: Solve for x
    x = 674,846,716.80/29,387.40
  6. Step 6: Final answer
    x = 22,963.81

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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.