Home / 31,433.28-43,379.32-17,286.62

Finding the Fourth Proportional to 31,433.28, 43,379.32 and 17,286.62

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Solution

The fourth proportional to 31,433.28, 43,379.32 and 17,286.62 is: 23,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.28 : 43,379.32 = 17,286.62 : x
  2. Step 2: Convert to fraction form
    31,433.28/43,379.32 = 17,286.62/x
  3. Step 3: Cross multiply
    31,433.28x = 43,379.32 × 17,286.62
  4. Step 4: Simplify right side
    31,433.28x = 749,881,820.70
  5. Step 5: Solve for x
    x = 749,881,820.70/31,433.28
  6. Step 6: Final answer
    x = 23,856.30

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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.