Home / 31,864.76-43,964.72-20,524.96

Finding the Fourth Proportional to 31,864.76, 43,964.72 and 20,524.96

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Solution

The fourth proportional to 31,864.76, 43,964.72 and 20,524.96 is: 28,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.76 : 43,964.72 = 20,524.96 : x
  2. Step 2: Convert to fraction form
    31,864.76/43,964.72 = 20,524.96/x
  3. Step 3: Cross multiply
    31,864.76x = 43,964.72 × 20,524.96
  4. Step 4: Simplify right side
    31,864.76x = 902,374,119.41
  5. Step 5: Solve for x
    x = 902,374,119.41/31,864.76
  6. Step 6: Final answer
    x = 28,318.87

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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.