Home / 21,034.80-31,553.01-5,452.02

Finding the Fourth Proportional to 21,034.80, 31,553.01 and 5,452.02

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Solution

The fourth proportional to 21,034.80, 31,553.01 and 5,452.02 is: 8,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.80 : 31,553.01 = 5,452.02 : x
  2. Step 2: Convert to fraction form
    21,034.80/31,553.01 = 5,452.02/x
  3. Step 3: Cross multiply
    21,034.80x = 31,553.01 × 5,452.02
  4. Step 4: Simplify right side
    21,034.80x = 172,027,641.58
  5. Step 5: Solve for x
    x = 172,027,641.58/21,034.80
  6. Step 6: Final answer
    x = 8,178.24

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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.