Home / 42,333.64-63,452.16-20,115.54

Finding the Fourth Proportional to 42,333.64, 63,452.16 and 20,115.54

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Solution

The fourth proportional to 42,333.64, 63,452.16 and 20,115.54 is: 30,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,333.64 : 63,452.16 = 20,115.54 : x
  2. Step 2: Convert to fraction form
    42,333.64/63,452.16 = 20,115.54/x
  3. Step 3: Cross multiply
    42,333.64x = 63,452.16 × 20,115.54
  4. Step 4: Simplify right side
    42,333.64x = 1,276,374,462.57
  5. Step 5: Solve for x
    x = 1,276,374,462.57/42,333.64
  6. Step 6: Final answer
    x = 30,150.36

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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.