Home / 42,433.32-63,650-11,268.57

Finding the Fourth Proportional to 42,433.32, 63,650 and 11,268.57

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Solution

The fourth proportional to 42,433.32, 63,650 and 11,268.57 is: 16,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,433.32 : 63,650 = 11,268.57 : x
  2. Step 2: Convert to fraction form
    42,433.32/63,650 = 11,268.57/x
  3. Step 3: Cross multiply
    42,433.32x = 63,650 × 11,268.57
  4. Step 4: Simplify right side
    42,433.32x = 717,244,480.50
  5. Step 5: Solve for x
    x = 717,244,480.50/42,433.32
  6. Step 6: Final answer
    x = 16,902.86

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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.