Home / 41,938.78-62,909.91-13,478.62

Finding the Fourth Proportional to 41,938.78, 62,909.91 and 13,478.62

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Solution

The fourth proportional to 41,938.78, 62,909.91 and 13,478.62 is: 20,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,938.78 : 62,909.91 = 13,478.62 : x
  2. Step 2: Convert to fraction form
    41,938.78/62,909.91 = 13,478.62/x
  3. Step 3: Cross multiply
    41,938.78x = 62,909.91 × 13,478.62
  4. Step 4: Simplify right side
    41,938.78x = 847,938,771.12
  5. Step 5: Solve for x
    x = 847,938,771.12/41,938.78
  6. Step 6: Final answer
    x = 20,218.49

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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.