Home / 28,123.73-42,164.70-17,027.78

Finding the Fourth Proportional to 28,123.73, 42,164.70 and 17,027.78

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Solution

The fourth proportional to 28,123.73, 42,164.70 and 17,027.78 is: 25,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.73 : 42,164.70 = 17,027.78 : x
  2. Step 2: Convert to fraction form
    28,123.73/42,164.70 = 17,027.78/x
  3. Step 3: Cross multiply
    28,123.73x = 42,164.70 × 17,027.78
  4. Step 4: Simplify right side
    28,123.73x = 717,971,024.54
  5. Step 5: Solve for x
    x = 717,971,024.54/28,123.73
  6. Step 6: Final answer
    x = 25,529.02

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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.