Home / 39,401.62-54,374.12-21,496.50

Finding the Fourth Proportional to 39,401.62, 54,374.12 and 21,496.50

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Solution

The fourth proportional to 39,401.62, 54,374.12 and 21,496.50 is: 29,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.62 : 54,374.12 = 21,496.50 : x
  2. Step 2: Convert to fraction form
    39,401.62/54,374.12 = 21,496.50/x
  3. Step 3: Cross multiply
    39,401.62x = 54,374.12 × 21,496.50
  4. Step 4: Simplify right side
    39,401.62x = 1,168,853,270.58
  5. Step 5: Solve for x
    x = 1,168,853,270.58/39,401.62
  6. Step 6: Final answer
    x = 29,665.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.