Home / 21,292.27-31,939.77-7,248.39

Finding the Fourth Proportional to 21,292.27, 31,939.77 and 7,248.39

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Solution

The fourth proportional to 21,292.27, 31,939.77 and 7,248.39 is: 10,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.27 : 31,939.77 = 7,248.39 : x
  2. Step 2: Convert to fraction form
    21,292.27/31,939.77 = 7,248.39/x
  3. Step 3: Cross multiply
    21,292.27x = 31,939.77 × 7,248.39
  4. Step 4: Simplify right side
    21,292.27x = 231,511,776.11
  5. Step 5: Solve for x
    x = 231,511,776.11/21,292.27
  6. Step 6: Final answer
    x = 10,873.04

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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.