Home / 32,931.52-45,445.86-18,785.20

Finding the Fourth Proportional to 32,931.52, 45,445.86 and 18,785.20

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Solution

The fourth proportional to 32,931.52, 45,445.86 and 18,785.20 is: 25,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,931.52 : 45,445.86 = 18,785.20 : x
  2. Step 2: Convert to fraction form
    32,931.52/45,445.86 = 18,785.20/x
  3. Step 3: Cross multiply
    32,931.52x = 45,445.86 × 18,785.20
  4. Step 4: Simplify right side
    32,931.52x = 853,709,569.27
  5. Step 5: Solve for x
    x = 853,709,569.27/32,931.52
  6. Step 6: Final answer
    x = 25,923.78

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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.