Home / 31,593.12-43,532.04-21,503.76

Finding the Fourth Proportional to 31,593.12, 43,532.04 and 21,503.76

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Solution

The fourth proportional to 31,593.12, 43,532.04 and 21,503.76 is: 29,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,593.12 : 43,532.04 = 21,503.76 : x
  2. Step 2: Convert to fraction form
    31,593.12/43,532.04 = 21,503.76/x
  3. Step 3: Cross multiply
    31,593.12x = 43,532.04 × 21,503.76
  4. Step 4: Simplify right side
    31,593.12x = 936,102,540.47
  5. Step 5: Solve for x
    x = 936,102,540.47/31,593.12
  6. Step 6: Final answer
    x = 29,629.95

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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.