Home / 31,285.38-43,173.84-17,138.28

Finding the Fourth Proportional to 31,285.38, 43,173.84 and 17,138.28

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Solution

The fourth proportional to 31,285.38, 43,173.84 and 17,138.28 is: 23,650.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.38 : 43,173.84 = 17,138.28 : x
  2. Step 2: Convert to fraction form
    31,285.38/43,173.84 = 17,138.28/x
  3. Step 3: Cross multiply
    31,285.38x = 43,173.84 × 17,138.28
  4. Step 4: Simplify right side
    31,285.38x = 739,925,358.60
  5. Step 5: Solve for x
    x = 739,925,358.60/31,285.38
  6. Step 6: Final answer
    x = 23,650.83

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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.