Home / 42,553.50-63,830.25-11,388.06

Finding the Fourth Proportional to 42,553.50, 63,830.25 and 11,388.06

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Solution

The fourth proportional to 42,553.50, 63,830.25 and 11,388.06 is: 17,082.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,553.50 : 63,830.25 = 11,388.06 : x
  2. Step 2: Convert to fraction form
    42,553.50/63,830.25 = 11,388.06/x
  3. Step 3: Cross multiply
    42,553.50x = 63,830.25 × 11,388.06
  4. Step 4: Simplify right side
    42,553.50x = 726,902,716.82
  5. Step 5: Solve for x
    x = 726,902,716.82/42,553.50
  6. Step 6: Final answer
    x = 17,082.09

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Double scale
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Similar ratio
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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.