Home / 41,721.76-62,580.63-13,638.25

Finding the Fourth Proportional to 41,721.76, 62,580.63 and 13,638.25

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Solution

The fourth proportional to 41,721.76, 62,580.63 and 13,638.25 is: 20,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,721.76 : 62,580.63 = 13,638.25 : x
  2. Step 2: Convert to fraction form
    41,721.76/62,580.63 = 13,638.25/x
  3. Step 3: Cross multiply
    41,721.76x = 62,580.63 × 13,638.25
  4. Step 4: Simplify right side
    41,721.76x = 853,490,277.10
  5. Step 5: Solve for x
    x = 853,490,277.10/41,721.76
  6. Step 6: Final answer
    x = 20,456.72

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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.