Home / 31,509.15-43,468.97-18,755.18

Finding the Fourth Proportional to 31,509.15, 43,468.97 and 18,755.18

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Solution

The fourth proportional to 31,509.15, 43,468.97 and 18,755.18 is: 25,874.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.15 : 43,468.97 = 18,755.18 : x
  2. Step 2: Convert to fraction form
    31,509.15/43,468.97 = 18,755.18/x
  3. Step 3: Cross multiply
    31,509.15x = 43,468.97 × 18,755.18
  4. Step 4: Simplify right side
    31,509.15x = 815,268,371.66
  5. Step 5: Solve for x
    x = 815,268,371.66/31,509.15
  6. Step 6: Final answer
    x = 25,874.02

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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.