Home / 20,306.06-30,459.18-7,151.30

Finding the Fourth Proportional to 20,306.06, 30,459.18 and 7,151.30

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Solution

The fourth proportional to 20,306.06, 30,459.18 and 7,151.30 is: 10,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.06 : 30,459.18 = 7,151.30 : x
  2. Step 2: Convert to fraction form
    20,306.06/30,459.18 = 7,151.30/x
  3. Step 3: Cross multiply
    20,306.06x = 30,459.18 × 7,151.30
  4. Step 4: Simplify right side
    20,306.06x = 217,822,733.93
  5. Step 5: Solve for x
    x = 217,822,733.93/20,306.06
  6. Step 6: Final answer
    x = 10,726.98

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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.