Home / 29,385.28-40,531.64-18,770.16

Finding the Fourth Proportional to 29,385.28, 40,531.64 and 18,770.16

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Solution

The fourth proportional to 29,385.28, 40,531.64 and 18,770.16 is: 25,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,385.28 : 40,531.64 = 18,770.16 : x
  2. Step 2: Convert to fraction form
    29,385.28/40,531.64 = 18,770.16/x
  3. Step 3: Cross multiply
    29,385.28x = 40,531.64 × 18,770.16
  4. Step 4: Simplify right side
    29,385.28x = 760,785,367.86
  5. Step 5: Solve for x
    x = 760,785,367.86/29,385.28
  6. Step 6: Final answer
    x = 25,890.02

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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.