Home / 40,581.28-60,869.80-14,286.20

Finding the Fourth Proportional to 40,581.28, 60,869.80 and 14,286.20

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Solution

The fourth proportional to 40,581.28, 60,869.80 and 14,286.20 is: 21,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,581.28 : 60,869.80 = 14,286.20 : x
  2. Step 2: Convert to fraction form
    40,581.28/60,869.80 = 14,286.20/x
  3. Step 3: Cross multiply
    40,581.28x = 60,869.80 × 14,286.20
  4. Step 4: Simplify right side
    40,581.28x = 869,598,136.76
  5. Step 5: Solve for x
    x = 869,598,136.76/40,581.28
  6. Step 6: Final answer
    x = 21,428.55

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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.