Home / 31,656.20-43,686.42-18,232.16

Finding the Fourth Proportional to 31,656.20, 43,686.42 and 18,232.16

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Solution

The fourth proportional to 31,656.20, 43,686.42 and 18,232.16 is: 25,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,656.20 : 43,686.42 = 18,232.16 : x
  2. Step 2: Convert to fraction form
    31,656.20/43,686.42 = 18,232.16/x
  3. Step 3: Cross multiply
    31,656.20x = 43,686.42 × 18,232.16
  4. Step 4: Simplify right side
    31,656.20x = 796,497,799.27
  5. Step 5: Solve for x
    x = 796,497,799.27/31,656.20
  6. Step 6: Final answer
    x = 25,160.88

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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.