Home / 41,320.70-61,981.05-13,615.10

Finding the Fourth Proportional to 41,320.70, 61,981.05 and 13,615.10

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Solution

The fourth proportional to 41,320.70, 61,981.05 and 13,615.10 is: 20,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,320.70 : 61,981.05 = 13,615.10 : x
  2. Step 2: Convert to fraction form
    41,320.70/61,981.05 = 13,615.10/x
  3. Step 3: Cross multiply
    41,320.70x = 61,981.05 × 13,615.10
  4. Step 4: Simplify right side
    41,320.70x = 843,878,193.86
  5. Step 5: Solve for x
    x = 843,878,193.86/41,320.70
  6. Step 6: Final answer
    x = 20,422.65

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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.