Home / 31,292.76-43,182.36-17,145.30

Finding the Fourth Proportional to 31,292.76, 43,182.36 and 17,145.30

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Solution

The fourth proportional to 31,292.76, 43,182.36 and 17,145.30 is: 23,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.76 : 43,182.36 = 17,145.30 : x
  2. Step 2: Convert to fraction form
    31,292.76/43,182.36 = 17,145.30/x
  3. Step 3: Cross multiply
    31,292.76x = 43,182.36 × 17,145.30
  4. Step 4: Simplify right side
    31,292.76x = 740,374,516.91
  5. Step 5: Solve for x
    x = 740,374,516.91/31,292.76
  6. Step 6: Final answer
    x = 23,659.61

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Double scale
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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.