Home / 31,767.21-47,649.96-8,393.85

Finding the Fourth Proportional to 31,767.21, 47,649.96 and 8,393.85

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Solution

The fourth proportional to 31,767.21, 47,649.96 and 8,393.85 is: 12,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,767.21 : 47,649.96 = 8,393.85 : x
  2. Step 2: Convert to fraction form
    31,767.21/47,649.96 = 8,393.85/x
  3. Step 3: Cross multiply
    31,767.21x = 47,649.96 × 8,393.85
  4. Step 4: Simplify right side
    31,767.21x = 399,966,616.75
  5. Step 5: Solve for x
    x = 399,966,616.75/31,767.21
  6. Step 6: Final answer
    x = 12,590.55

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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.