Home / 21,062.14-31,593.19-5,479.77

Finding the Fourth Proportional to 21,062.14, 31,593.19 and 5,479.77

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Solution

The fourth proportional to 21,062.14, 31,593.19 and 5,479.77 is: 8,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.14 : 31,593.19 = 5,479.77 : x
  2. Step 2: Convert to fraction form
    21,062.14/31,593.19 = 5,479.77/x
  3. Step 3: Cross multiply
    21,062.14x = 31,593.19 × 5,479.77
  4. Step 4: Simplify right side
    21,062.14x = 173,123,414.77
  5. Step 5: Solve for x
    x = 173,123,414.77/21,062.14
  6. Step 6: Final answer
    x = 8,219.65

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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.