Home / 31,778.88-43,853.40-17,631.60

Finding the Fourth Proportional to 31,778.88, 43,853.40 and 17,631.60

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Solution

The fourth proportional to 31,778.88, 43,853.40 and 17,631.60 is: 24,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.88 : 43,853.40 = 17,631.60 : x
  2. Step 2: Convert to fraction form
    31,778.88/43,853.40 = 17,631.60/x
  3. Step 3: Cross multiply
    31,778.88x = 43,853.40 × 17,631.60
  4. Step 4: Simplify right side
    31,778.88x = 773,205,607.44
  5. Step 5: Solve for x
    x = 773,205,607.44/31,778.88
  6. Step 6: Final answer
    x = 24,330.80

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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.