Home / 23,102.92-31,880.82-13,031.38

Finding the Fourth Proportional to 23,102.92, 31,880.82 and 13,031.38

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Solution

The fourth proportional to 23,102.92, 31,880.82 and 13,031.38 is: 17,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,102.92 : 31,880.82 = 13,031.38 : x
  2. Step 2: Convert to fraction form
    23,102.92/31,880.82 = 13,031.38/x
  3. Step 3: Cross multiply
    23,102.92x = 31,880.82 × 13,031.38
  4. Step 4: Simplify right side
    23,102.92x = 415,451,080.13
  5. Step 5: Solve for x
    x = 415,451,080.13/23,102.92
  6. Step 6: Final answer
    x = 17,982.62

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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.