Home / 28,591.38-42,901.68-13,615.44

Finding the Fourth Proportional to 28,591.38, 42,901.68 and 13,615.44

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Solution

The fourth proportional to 28,591.38, 42,901.68 and 13,615.44 is: 20,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.38 : 42,901.68 = 13,615.44 : x
  2. Step 2: Convert to fraction form
    28,591.38/42,901.68 = 13,615.44/x
  3. Step 3: Cross multiply
    28,591.38x = 42,901.68 × 13,615.44
  4. Step 4: Simplify right side
    28,591.38x = 584,125,249.94
  5. Step 5: Solve for x
    x = 584,125,249.94/28,591.38
  6. Step 6: Final answer
    x = 20,430.12

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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.