Home / 20,403.38-30,580.44-10,537.28

Finding the Fourth Proportional to 20,403.38, 30,580.44 and 10,537.28

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Solution

The fourth proportional to 20,403.38, 30,580.44 and 10,537.28 is: 15,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.38 : 30,580.44 = 10,537.28 : x
  2. Step 2: Convert to fraction form
    20,403.38/30,580.44 = 10,537.28/x
  3. Step 3: Cross multiply
    20,403.38x = 30,580.44 × 10,537.28
  4. Step 4: Simplify right side
    20,403.38x = 322,234,658.80
  5. Step 5: Solve for x
    x = 322,234,658.80/20,403.38
  6. Step 6: Final answer
    x = 15,793.20

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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.