Home / 31,626.74-43,652.18-18,205.79

Finding the Fourth Proportional to 31,626.74, 43,652.18 and 18,205.79

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Solution

The fourth proportional to 31,626.74, 43,652.18 and 18,205.79 is: 25,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,626.74 : 43,652.18 = 18,205.79 : x
  2. Step 2: Convert to fraction form
    31,626.74/43,652.18 = 18,205.79/x
  3. Step 3: Cross multiply
    31,626.74x = 43,652.18 × 18,205.79
  4. Step 4: Simplify right side
    31,626.74x = 794,722,249.38
  5. Step 5: Solve for x
    x = 794,722,249.38/31,626.74
  6. Step 6: Final answer
    x = 25,128.17

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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.