Home / 31,778.05-43,853.71-17,630.86

Finding the Fourth Proportional to 31,778.05, 43,853.71 and 17,630.86

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Solution

The fourth proportional to 31,778.05, 43,853.71 and 17,630.86 is: 24,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.05 : 43,853.71 = 17,630.86 : x
  2. Step 2: Convert to fraction form
    31,778.05/43,853.71 = 17,630.86/x
  3. Step 3: Cross multiply
    31,778.05x = 43,853.71 × 17,630.86
  4. Step 4: Simplify right side
    31,778.05x = 773,178,358.14
  5. Step 5: Solve for x
    x = 773,178,358.14/31,778.05
  6. Step 6: Final answer
    x = 24,330.58

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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.