Home / 28,390.20-42,593.52-11,747.16

Finding the Fourth Proportional to 28,390.20, 42,593.52 and 11,747.16

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Solution

The fourth proportional to 28,390.20, 42,593.52 and 11,747.16 is: 17,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.20 : 42,593.52 = 11,747.16 : x
  2. Step 2: Convert to fraction form
    28,390.20/42,593.52 = 11,747.16/x
  3. Step 3: Cross multiply
    28,390.20x = 42,593.52 × 11,747.16
  4. Step 4: Simplify right side
    28,390.20x = 500,352,894.40
  5. Step 5: Solve for x
    x = 500,352,894.40/28,390.20
  6. Step 6: Final answer
    x = 17,624.14

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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.