Home / 21,327.71-31,984.40-7,092.90

Finding the Fourth Proportional to 21,327.71, 31,984.40 and 7,092.90

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Solution

The fourth proportional to 21,327.71, 31,984.40 and 7,092.90 is: 10,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.71 : 31,984.40 = 7,092.90 : x
  2. Step 2: Convert to fraction form
    21,327.71/31,984.40 = 7,092.90/x
  3. Step 3: Cross multiply
    21,327.71x = 31,984.40 × 7,092.90
  4. Step 4: Simplify right side
    21,327.71x = 226,862,115.30
  5. Step 5: Solve for x
    x = 226,862,115.30/21,327.71
  6. Step 6: Final answer
    x = 10,636.97

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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.