Home / 28,769.61-43,146.45-18,223.95

Finding the Fourth Proportional to 28,769.61, 43,146.45 and 18,223.95

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Solution

The fourth proportional to 28,769.61, 43,146.45 and 18,223.95 is: 27,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.61 : 43,146.45 = 18,223.95 : x
  2. Step 2: Convert to fraction form
    28,769.61/43,146.45 = 18,223.95/x
  3. Step 3: Cross multiply
    28,769.61x = 43,146.45 × 18,223.95
  4. Step 4: Simplify right side
    28,769.61x = 786,298,747.48
  5. Step 5: Solve for x
    x = 786,298,747.48/28,769.61
  6. Step 6: Final answer
    x = 27,330.88

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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.