Home / 31,257.72-43,135.77-17,111.88

Finding the Fourth Proportional to 31,257.72, 43,135.77 and 17,111.88

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Solution

The fourth proportional to 31,257.72, 43,135.77 and 17,111.88 is: 23,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.72 : 43,135.77 = 17,111.88 : x
  2. Step 2: Convert to fraction form
    31,257.72/43,135.77 = 17,111.88/x
  3. Step 3: Cross multiply
    31,257.72x = 43,135.77 × 17,111.88
  4. Step 4: Simplify right side
    31,257.72x = 738,134,119.95
  5. Step 5: Solve for x
    x = 738,134,119.95/31,257.72
  6. Step 6: Final answer
    x = 23,614.46

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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.