Home / 31,207.60-43,063.40-17,778.06

Finding the Fourth Proportional to 31,207.60, 43,063.40 and 17,778.06

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Solution

The fourth proportional to 31,207.60, 43,063.40 and 17,778.06 is: 24,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207.60 : 43,063.40 = 17,778.06 : x
  2. Step 2: Convert to fraction form
    31,207.60/43,063.40 = 17,778.06/x
  3. Step 3: Cross multiply
    31,207.60x = 43,063.40 × 17,778.06
  4. Step 4: Simplify right side
    31,207.60x = 765,583,493.69
  5. Step 5: Solve for x
    x = 765,583,493.69/31,207.60
  6. Step 6: Final answer
    x = 24,531.96

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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.