Home / 31,585.14-43,589.34-18,160.20

Finding the Fourth Proportional to 31,585.14, 43,589.34 and 18,160.20

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Solution

The fourth proportional to 31,585.14, 43,589.34 and 18,160.20 is: 25,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,585.14 : 43,589.34 = 18,160.20 : x
  2. Step 2: Convert to fraction form
    31,585.14/43,589.34 = 18,160.20/x
  3. Step 3: Cross multiply
    31,585.14x = 43,589.34 × 18,160.20
  4. Step 4: Simplify right side
    31,585.14x = 791,591,132.27
  5. Step 5: Solve for x
    x = 791,591,132.27/31,585.14
  6. Step 6: Final answer
    x = 25,062.14

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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.