Home / 31,181.76-43,029.23-17,031.87

Finding the Fourth Proportional to 31,181.76, 43,029.23 and 17,031.87

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Solution

The fourth proportional to 31,181.76, 43,029.23 and 17,031.87 is: 23,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.76 : 43,029.23 = 17,031.87 : x
  2. Step 2: Convert to fraction form
    31,181.76/43,029.23 = 17,031.87/x
  3. Step 3: Cross multiply
    31,181.76x = 43,029.23 × 17,031.87
  4. Step 4: Simplify right side
    31,181.76x = 732,868,166.40
  5. Step 5: Solve for x
    x = 732,868,166.40/31,181.76
  6. Step 6: Final answer
    x = 23,503.10

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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.