Home / 31,778.64-43,854.30-17,631.48

Finding the Fourth Proportional to 31,778.64, 43,854.30 and 17,631.48

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Solution

The fourth proportional to 31,778.64, 43,854.30 and 17,631.48 is: 24,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.64 : 43,854.30 = 17,631.48 : x
  2. Step 2: Convert to fraction form
    31,778.64/43,854.30 = 17,631.48/x
  3. Step 3: Cross multiply
    31,778.64x = 43,854.30 × 17,631.48
  4. Step 4: Simplify right side
    31,778.64x = 773,216,213.36
  5. Step 5: Solve for x
    x = 773,216,213.36/31,778.64
  6. Step 6: Final answer
    x = 24,331.32

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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.