Home / 31,863.57-43,972.86-18,254.05

Finding the Fourth Proportional to 31,863.57, 43,972.86 and 18,254.05

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Solution

The fourth proportional to 31,863.57, 43,972.86 and 18,254.05 is: 25,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.57 : 43,972.86 = 18,254.05 : x
  2. Step 2: Convert to fraction form
    31,863.57/43,972.86 = 18,254.05/x
  3. Step 3: Cross multiply
    31,863.57x = 43,972.86 × 18,254.05
  4. Step 4: Simplify right side
    31,863.57x = 802,682,473.95
  5. Step 5: Solve for x
    x = 802,682,473.95/31,863.57
  6. Step 6: Final answer
    x = 25,191.23

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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.