Home / 42,241.14-63,373.68-21,155.72

Finding the Fourth Proportional to 42,241.14, 63,373.68 and 21,155.72

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Solution

The fourth proportional to 42,241.14, 63,373.68 and 21,155.72 is: 31,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,241.14 : 63,373.68 = 21,155.72 : x
  2. Step 2: Convert to fraction form
    42,241.14/63,373.68 = 21,155.72/x
  3. Step 3: Cross multiply
    42,241.14x = 63,373.68 × 21,155.72
  4. Step 4: Simplify right side
    42,241.14x = 1,340,715,512.58
  5. Step 5: Solve for x
    x = 1,340,715,512.58/42,241.14
  6. Step 6: Final answer
    x = 31,739.57

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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.