Home / 16,191.12-22,305.44-15,443.76

Finding the Fourth Proportional to 16,191.12, 22,305.44 and 15,443.76

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Solution

The fourth proportional to 16,191.12, 22,305.44 and 15,443.76 is: 21,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.12 : 22,305.44 = 15,443.76 : x
  2. Step 2: Convert to fraction form
    16,191.12/22,305.44 = 15,443.76/x
  3. Step 3: Cross multiply
    16,191.12x = 22,305.44 × 15,443.76
  4. Step 4: Simplify right side
    16,191.12x = 344,479,862.05
  5. Step 5: Solve for x
    x = 344,479,862.05/16,191.12
  6. Step 6: Final answer
    x = 21,275.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.