Home / 31,432.77-43,378.61-17,286.12

Finding the Fourth Proportional to 31,432.77, 43,378.61 and 17,286.12

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Solution

The fourth proportional to 31,432.77, 43,378.61 and 17,286.12 is: 23,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.77 : 43,378.61 = 17,286.12 : x
  2. Step 2: Convert to fraction form
    31,432.77/43,378.61 = 17,286.12/x
  3. Step 3: Cross multiply
    31,432.77x = 43,378.61 × 17,286.12
  4. Step 4: Simplify right side
    31,432.77x = 749,847,771.46
  5. Step 5: Solve for x
    x = 749,847,771.46/31,432.77
  6. Step 6: Final answer
    x = 23,855.61

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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.