Home / 19,253.28-28,839.44-12,229.76

Finding the Fourth Proportional to 19,253.28, 28,839.44 and 12,229.76

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Solution

The fourth proportional to 19,253.28, 28,839.44 and 12,229.76 is: 18,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,253.28 : 28,839.44 = 12,229.76 : x
  2. Step 2: Convert to fraction form
    19,253.28/28,839.44 = 12,229.76/x
  3. Step 3: Cross multiply
    19,253.28x = 28,839.44 × 12,229.76
  4. Step 4: Simplify right side
    19,253.28x = 352,699,429.73
  5. Step 5: Solve for x
    x = 352,699,429.73/19,253.28
  6. Step 6: Final answer
    x = 18,318.93

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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.