Home / 18,451.12-25,285.28-16,679.76

Finding the Fourth Proportional to 18,451.12, 25,285.28 and 16,679.76

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Solution

The fourth proportional to 18,451.12, 25,285.28 and 16,679.76 is: 22,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.12 : 25,285.28 = 16,679.76 : x
  2. Step 2: Convert to fraction form
    18,451.12/25,285.28 = 16,679.76/x
  3. Step 3: Cross multiply
    18,451.12x = 25,285.28 × 16,679.76
  4. Step 4: Simplify right side
    18,451.12x = 421,752,401.93
  5. Step 5: Solve for x
    x = 421,752,401.93/18,451.12
  6. Step 6: Final answer
    x = 22,857.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.