Home / 20,279.27-30,418.89-14,767.68

Finding the Fourth Proportional to 20,279.27, 30,418.89 and 14,767.68

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Solution

The fourth proportional to 20,279.27, 30,418.89 and 14,767.68 is: 22,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.27 : 30,418.89 = 14,767.68 : x
  2. Step 2: Convert to fraction form
    20,279.27/30,418.89 = 14,767.68/x
  3. Step 3: Cross multiply
    20,279.27x = 30,418.89 × 14,767.68
  4. Step 4: Simplify right side
    20,279.27x = 449,216,433.48
  5. Step 5: Solve for x
    x = 449,216,433.48/20,279.27
  6. Step 6: Final answer
    x = 22,151.51

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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.