Home / 18,972.28-28,457.52-5,824.78

Finding the Fourth Proportional to 18,972.28, 28,457.52 and 5,824.78

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Solution

The fourth proportional to 18,972.28, 28,457.52 and 5,824.78 is: 8,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.28 : 28,457.52 = 5,824.78 : x
  2. Step 2: Convert to fraction form
    18,972.28/28,457.52 = 5,824.78/x
  3. Step 3: Cross multiply
    18,972.28x = 28,457.52 × 5,824.78
  4. Step 4: Simplify right side
    18,972.28x = 165,758,793.35
  5. Step 5: Solve for x
    x = 165,758,793.35/18,972.28
  6. Step 6: Final answer
    x = 8,736.89

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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.