Home / 31,751.91-43,819.11-18,322.92

Finding the Fourth Proportional to 31,751.91, 43,819.11 and 18,322.92

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Solution

The fourth proportional to 31,751.91, 43,819.11 and 18,322.92 is: 25,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.91 : 43,819.11 = 18,322.92 : x
  2. Step 2: Convert to fraction form
    31,751.91/43,819.11 = 18,322.92/x
  3. Step 3: Cross multiply
    31,751.91x = 43,819.11 × 18,322.92
  4. Step 4: Simplify right side
    31,751.91x = 802,894,047.00
  5. Step 5: Solve for x
    x = 802,894,047.00/31,751.91
  6. Step 6: Final answer
    x = 25,286.48

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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.