Home / 20,973.10-31,481.50-9,294.52

Finding the Fourth Proportional to 20,973.10, 31,481.50 and 9,294.52

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Solution

The fourth proportional to 20,973.10, 31,481.50 and 9,294.52 is: 13,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.10 : 31,481.50 = 9,294.52 : x
  2. Step 2: Convert to fraction form
    20,973.10/31,481.50 = 9,294.52/x
  3. Step 3: Cross multiply
    20,973.10x = 31,481.50 × 9,294.52
  4. Step 4: Simplify right side
    20,973.10x = 292,605,431.38
  5. Step 5: Solve for x
    x = 292,605,431.38/20,973.10
  6. Step 6: Final answer
    x = 13,951.46

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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.