Home / 20,252.28-30,344.40-14,379.78

Finding the Fourth Proportional to 20,252.28, 30,344.40 and 14,379.78

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Solution

The fourth proportional to 20,252.28, 30,344.40 and 14,379.78 is: 21,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.28 : 30,344.40 = 14,379.78 : x
  2. Step 2: Convert to fraction form
    20,252.28/30,344.40 = 14,379.78/x
  3. Step 3: Cross multiply
    20,252.28x = 30,344.40 × 14,379.78
  4. Step 4: Simplify right side
    20,252.28x = 436,345,796.23
  5. Step 5: Solve for x
    x = 436,345,796.23/20,252.28
  6. Step 6: Final answer
    x = 21,545.51

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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.