Home / 31,181.28-43,027.92-17,031.12

Finding the Fourth Proportional to 31,181.28, 43,027.92 and 17,031.12

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Solution

The fourth proportional to 31,181.28, 43,027.92 and 17,031.12 is: 23,501.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.28 : 43,027.92 = 17,031.12 : x
  2. Step 2: Convert to fraction form
    31,181.28/43,027.92 = 17,031.12/x
  3. Step 3: Cross multiply
    31,181.28x = 43,027.92 × 17,031.12
  4. Step 4: Simplify right side
    31,181.28x = 732,813,668.87
  5. Step 5: Solve for x
    x = 732,813,668.87/31,181.28
  6. Step 6: Final answer
    x = 23,501.72

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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.