Home / 31,671.32-47,538.36-28,136.57

Finding the Fourth Proportional to 31,671.32, 47,538.36 and 28,136.57

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Solution

The fourth proportional to 31,671.32, 47,538.36 and 28,136.57 is: 42,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,671.32 : 47,538.36 = 28,136.57 : x
  2. Step 2: Convert to fraction form
    31,671.32/47,538.36 = 28,136.57/x
  3. Step 3: Cross multiply
    31,671.32x = 47,538.36 × 28,136.57
  4. Step 4: Simplify right side
    31,671.32x = 1,337,566,156.13
  5. Step 5: Solve for x
    x = 1,337,566,156.13/31,671.32
  6. Step 6: Final answer
    x = 42,232.73

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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.