Home / 20,747.52-31,092.12-9,036.18

Finding the Fourth Proportional to 20,747.52, 31,092.12 and 9,036.18

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Solution

The fourth proportional to 20,747.52, 31,092.12 and 9,036.18 is: 13,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.52 : 31,092.12 = 9,036.18 : x
  2. Step 2: Convert to fraction form
    20,747.52/31,092.12 = 9,036.18/x
  3. Step 3: Cross multiply
    20,747.52x = 31,092.12 × 9,036.18
  4. Step 4: Simplify right side
    20,747.52x = 280,953,992.90
  5. Step 5: Solve for x
    x = 280,953,992.90/20,747.52
  6. Step 6: Final answer
    x = 13,541.57

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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.