Home / 31,593.28-43,600.32-20,964.80

Finding the Fourth Proportional to 31,593.28, 43,600.32 and 20,964.80

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Solution

The fourth proportional to 31,593.28, 43,600.32 and 20,964.80 is: 28,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,593.28 : 43,600.32 = 20,964.80 : x
  2. Step 2: Convert to fraction form
    31,593.28/43,600.32 = 20,964.80/x
  3. Step 3: Cross multiply
    31,593.28x = 43,600.32 × 20,964.80
  4. Step 4: Simplify right side
    31,593.28x = 914,071,988.74
  5. Step 5: Solve for x
    x = 914,071,988.74/31,593.28
  6. Step 6: Final answer
    x = 28,932.48

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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.