Home / 18,932.80-28,401.28-5,082.88

Finding the Fourth Proportional to 18,932.80, 28,401.28 and 5,082.88

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Solution

The fourth proportional to 18,932.80, 28,401.28 and 5,082.88 is: 7,624.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.80 : 28,401.28 = 5,082.88 : x
  2. Step 2: Convert to fraction form
    18,932.80/28,401.28 = 5,082.88/x
  3. Step 3: Cross multiply
    18,932.80x = 28,401.28 × 5,082.88
  4. Step 4: Simplify right side
    18,932.80x = 144,360,298.09
  5. Step 5: Solve for x
    x = 144,360,298.09/18,932.80
  6. Step 6: Final answer
    x = 7,624.88

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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.