Home / 31,546.65-43,534.29-18,118.77

Finding the Fourth Proportional to 31,546.65, 43,534.29 and 18,118.77

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Solution

The fourth proportional to 31,546.65, 43,534.29 and 18,118.77 is: 25,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.65 : 43,534.29 = 18,118.77 : x
  2. Step 2: Convert to fraction form
    31,546.65/43,534.29 = 18,118.77/x
  3. Step 3: Cross multiply
    31,546.65x = 43,534.29 × 18,118.77
  4. Step 4: Simplify right side
    31,546.65x = 788,787,753.65
  5. Step 5: Solve for x
    x = 788,787,753.65/31,546.65
  6. Step 6: Final answer
    x = 25,003.85

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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.