Home / 42,615.78-63,923.62-11,451.04

Finding the Fourth Proportional to 42,615.78, 63,923.62 and 11,451.04

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Solution

The fourth proportional to 42,615.78, 63,923.62 and 11,451.04 is: 17,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.78 : 63,923.62 = 11,451.04 : x
  2. Step 2: Convert to fraction form
    42,615.78/63,923.62 = 11,451.04/x
  3. Step 3: Cross multiply
    42,615.78x = 63,923.62 × 11,451.04
  4. Step 4: Simplify right side
    42,615.78x = 731,991,929.56
  5. Step 5: Solve for x
    x = 731,991,929.56/42,615.78
  6. Step 6: Final answer
    x = 17,176.55

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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.