Home / 31,523.62-47,288.64-18,211.57

Finding the Fourth Proportional to 31,523.62, 47,288.64 and 18,211.57

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Solution

The fourth proportional to 31,523.62, 47,288.64 and 18,211.57 is: 27,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.62 : 47,288.64 = 18,211.57 : x
  2. Step 2: Convert to fraction form
    31,523.62/47,288.64 = 18,211.57/x
  3. Step 3: Cross multiply
    31,523.62x = 47,288.64 × 18,211.57
  4. Step 4: Simplify right side
    31,523.62x = 861,200,377.56
  5. Step 5: Solve for x
    x = 861,200,377.56/31,523.62
  6. Step 6: Final answer
    x = 27,319.21

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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.