Home / 40,983.70-61,475.55-13,281.70

Finding the Fourth Proportional to 40,983.70, 61,475.55 and 13,281.70

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Solution

The fourth proportional to 40,983.70, 61,475.55 and 13,281.70 is: 19,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,983.70 : 61,475.55 = 13,281.70 : x
  2. Step 2: Convert to fraction form
    40,983.70/61,475.55 = 13,281.70/x
  3. Step 3: Cross multiply
    40,983.70x = 61,475.55 × 13,281.70
  4. Step 4: Simplify right side
    40,983.70x = 816,499,812.44
  5. Step 5: Solve for x
    x = 816,499,812.44/40,983.70
  6. Step 6: Final answer
    x = 19,922.55

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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.