Home / 31,398.10-43,330.20-17,251.32

Finding the Fourth Proportional to 31,398.10, 43,330.20 and 17,251.32

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Solution

The fourth proportional to 31,398.10, 43,330.20 and 17,251.32 is: 23,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.10 : 43,330.20 = 17,251.32 : x
  2. Step 2: Convert to fraction form
    31,398.10/43,330.20 = 17,251.32/x
  3. Step 3: Cross multiply
    31,398.10x = 43,330.20 × 17,251.32
  4. Step 4: Simplify right side
    31,398.10x = 747,503,145.86
  5. Step 5: Solve for x
    x = 747,503,145.86/31,398.10
  6. Step 6: Final answer
    x = 23,807.27

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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.