Home / 42,438.94-63,659.72-15,791.56

Finding the Fourth Proportional to 42,438.94, 63,659.72 and 15,791.56

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Solution

The fourth proportional to 42,438.94, 63,659.72 and 15,791.56 is: 23,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.94 : 63,659.72 = 15,791.56 : x
  2. Step 2: Convert to fraction form
    42,438.94/63,659.72 = 15,791.56/x
  3. Step 3: Cross multiply
    42,438.94x = 63,659.72 × 15,791.56
  4. Step 4: Simplify right side
    42,438.94x = 1,005,286,168.29
  5. Step 5: Solve for x
    x = 1,005,286,168.29/42,438.94
  6. Step 6: Final answer
    x = 23,687.83

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1.5x scale

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.