Home / 31,979.28-44,159.28-20,063.12

Finding the Fourth Proportional to 31,979.28, 44,159.28 and 20,063.12

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Solution

The fourth proportional to 31,979.28, 44,159.28 and 20,063.12 is: 27,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.28 : 44,159.28 = 20,063.12 : x
  2. Step 2: Convert to fraction form
    31,979.28/44,159.28 = 20,063.12/x
  3. Step 3: Cross multiply
    31,979.28x = 44,159.28 × 20,063.12
  4. Step 4: Simplify right side
    31,979.28x = 885,972,933.75
  5. Step 5: Solve for x
    x = 885,972,933.75/31,979.28
  6. Step 6: Final answer
    x = 27,704.59

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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.