Home / 20,984.27-31,487.33-9,294.75

Finding the Fourth Proportional to 20,984.27, 31,487.33 and 9,294.75

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Solution

The fourth proportional to 20,984.27, 31,487.33 and 9,294.75 is: 13,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.27 : 31,487.33 = 9,294.75 : x
  2. Step 2: Convert to fraction form
    20,984.27/31,487.33 = 9,294.75/x
  3. Step 3: Cross multiply
    20,984.27x = 31,487.33 × 9,294.75
  4. Step 4: Simplify right side
    20,984.27x = 292,666,883.75
  5. Step 5: Solve for x
    x = 292,666,883.75/20,984.27
  6. Step 6: Final answer
    x = 13,946.97

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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.