Home / 31,442.24-43,380-18,015.04

Finding the Fourth Proportional to 31,442.24, 43,380 and 18,015.04

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Solution

The fourth proportional to 31,442.24, 43,380 and 18,015.04 is: 24,854.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.24 : 43,380 = 18,015.04 : x
  2. Step 2: Convert to fraction form
    31,442.24/43,380 = 18,015.04/x
  3. Step 3: Cross multiply
    31,442.24x = 43,380 × 18,015.04
  4. Step 4: Simplify right side
    31,442.24x = 781,492,435.20
  5. Step 5: Solve for x
    x = 781,492,435.20/31,442.24
  6. Step 6: Final answer
    x = 24,854.86

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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.