Home / 39,874.57-59,821.11-13,579.54

Finding the Fourth Proportional to 39,874.57, 59,821.11 and 13,579.54

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Solution

The fourth proportional to 39,874.57, 59,821.11 and 13,579.54 is: 20,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.57 : 59,821.11 = 13,579.54 : x
  2. Step 2: Convert to fraction form
    39,874.57/59,821.11 = 13,579.54/x
  3. Step 3: Cross multiply
    39,874.57x = 59,821.11 × 13,579.54
  4. Step 4: Simplify right side
    39,874.57x = 812,343,006.54
  5. Step 5: Solve for x
    x = 812,343,006.54/39,874.57
  6. Step 6: Final answer
    x = 20,372.46

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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.