Home / 21,062.07-31,593.15-5,479.68

Finding the Fourth Proportional to 21,062.07, 31,593.15 and 5,479.68

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Solution

The fourth proportional to 21,062.07, 31,593.15 and 5,479.68 is: 8,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.07 : 31,593.15 = 5,479.68 : x
  2. Step 2: Convert to fraction form
    21,062.07/31,593.15 = 5,479.68/x
  3. Step 3: Cross multiply
    21,062.07x = 31,593.15 × 5,479.68
  4. Step 4: Simplify right side
    21,062.07x = 173,120,352.19
  5. Step 5: Solve for x
    x = 173,120,352.19/21,062.07
  6. Step 6: Final answer
    x = 8,219.53

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Similar ratio
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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.