Home / 31,751.38-43,814.77-18,323.20

Finding the Fourth Proportional to 31,751.38, 43,814.77 and 18,323.20

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Solution

The fourth proportional to 31,751.38, 43,814.77 and 18,323.20 is: 25,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.38 : 43,814.77 = 18,323.20 : x
  2. Step 2: Convert to fraction form
    31,751.38/43,814.77 = 18,323.20/x
  3. Step 3: Cross multiply
    31,751.38x = 43,814.77 × 18,323.20
  4. Step 4: Simplify right side
    31,751.38x = 802,826,793.66
  5. Step 5: Solve for x
    x = 802,826,793.66/31,751.38
  6. Step 6: Final answer
    x = 25,284.78

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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.