Home / 42,914.48-64,373.25-13,331.54

Finding the Fourth Proportional to 42,914.48, 64,373.25 and 13,331.54

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Solution

The fourth proportional to 42,914.48, 64,373.25 and 13,331.54 is: 19,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,914.48 : 64,373.25 = 13,331.54 : x
  2. Step 2: Convert to fraction form
    42,914.48/64,373.25 = 13,331.54/x
  3. Step 3: Cross multiply
    42,914.48x = 64,373.25 × 13,331.54
  4. Step 4: Simplify right side
    42,914.48x = 858,194,235.44
  5. Step 5: Solve for x
    x = 858,194,235.44/42,914.48
  6. Step 6: Final answer
    x = 19,997.78

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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.