Home / 21,092.22-31,641.57-7,047.90

Finding the Fourth Proportional to 21,092.22, 31,641.57 and 7,047.90

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Solution

The fourth proportional to 21,092.22, 31,641.57 and 7,047.90 is: 10,572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.22 : 31,641.57 = 7,047.90 : x
  2. Step 2: Convert to fraction form
    21,092.22/31,641.57 = 7,047.90/x
  3. Step 3: Cross multiply
    21,092.22x = 31,641.57 × 7,047.90
  4. Step 4: Simplify right side
    21,092.22x = 223,006,621.20
  5. Step 5: Solve for x
    x = 223,006,621.20/21,092.22
  6. Step 6: Final answer
    x = 10,572.93

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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.