Home / 31,708.42-43,747.70-18,277.84

Finding the Fourth Proportional to 31,708.42, 43,747.70 and 18,277.84

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Solution

The fourth proportional to 31,708.42, 43,747.70 and 18,277.84 is: 25,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.42 : 43,747.70 = 18,277.84 : x
  2. Step 2: Convert to fraction form
    31,708.42/43,747.70 = 18,277.84/x
  3. Step 3: Cross multiply
    31,708.42x = 43,747.70 × 18,277.84
  4. Step 4: Simplify right side
    31,708.42x = 799,613,460.97
  5. Step 5: Solve for x
    x = 799,613,460.97/31,708.42
  6. Step 6: Final answer
    x = 25,217.70

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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.