Home / 31,847.76-43,962-21,233.52

Finding the Fourth Proportional to 31,847.76, 43,962 and 21,233.52

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Solution

The fourth proportional to 31,847.76, 43,962 and 21,233.52 is: 29,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.76 : 43,962 = 21,233.52 : x
  2. Step 2: Convert to fraction form
    31,847.76/43,962 = 21,233.52/x
  3. Step 3: Cross multiply
    31,847.76x = 43,962 × 21,233.52
  4. Step 4: Simplify right side
    31,847.76x = 933,468,006.24
  5. Step 5: Solve for x
    x = 933,468,006.24/31,847.76
  6. Step 6: Final answer
    x = 29,310.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.