Home / 42,799.48-64,221.60-17,517.76

Finding the Fourth Proportional to 42,799.48, 64,221.60 and 17,517.76

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Solution

The fourth proportional to 42,799.48, 64,221.60 and 17,517.76 is: 26,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,799.48 : 64,221.60 = 17,517.76 : x
  2. Step 2: Convert to fraction form
    42,799.48/64,221.60 = 17,517.76/x
  3. Step 3: Cross multiply
    42,799.48x = 64,221.60 × 17,517.76
  4. Step 4: Simplify right side
    42,799.48x = 1,125,018,575.62
  5. Step 5: Solve for x
    x = 1,125,018,575.62/42,799.48
  6. Step 6: Final answer
    x = 26,285.80

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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.