Home / 20,278.71-30,418.04-14,767.11

Finding the Fourth Proportional to 20,278.71, 30,418.04 and 14,767.11

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Solution

The fourth proportional to 20,278.71, 30,418.04 and 14,767.11 is: 22,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278.71 : 30,418.04 = 14,767.11 : x
  2. Step 2: Convert to fraction form
    20,278.71/30,418.04 = 14,767.11/x
  3. Step 3: Cross multiply
    20,278.71x = 30,418.04 × 14,767.11
  4. Step 4: Simplify right side
    20,278.71x = 449,186,542.66
  5. Step 5: Solve for x
    x = 449,186,542.66/20,278.71
  6. Step 6: Final answer
    x = 22,150.65

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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.