Home / 38,561.20-57,744.60-28,646.80

Finding the Fourth Proportional to 38,561.20, 57,744.60 and 28,646.80

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Solution

The fourth proportional to 38,561.20, 57,744.60 and 28,646.80 is: 42,897.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561.20 : 57,744.60 = 28,646.80 : x
  2. Step 2: Convert to fraction form
    38,561.20/57,744.60 = 28,646.80/x
  3. Step 3: Cross multiply
    38,561.20x = 57,744.60 × 28,646.80
  4. Step 4: Simplify right side
    38,561.20x = 1,654,198,007.28
  5. Step 5: Solve for x
    x = 1,654,198,007.28/38,561.20
  6. Step 6: Final answer
    x = 42,897.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.