Home / 29,629.30-40,868.40-19,031.80

Finding the Fourth Proportional to 29,629.30, 40,868.40 and 19,031.80

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Solution

The fourth proportional to 29,629.30, 40,868.40 and 19,031.80 is: 26,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,629.30 : 40,868.40 = 19,031.80 : x
  2. Step 2: Convert to fraction form
    29,629.30/40,868.40 = 19,031.80/x
  3. Step 3: Cross multiply
    29,629.30x = 40,868.40 × 19,031.80
  4. Step 4: Simplify right side
    29,629.30x = 777,799,215.12
  5. Step 5: Solve for x
    x = 777,799,215.12/29,629.30
  6. Step 6: Final answer
    x = 26,251.02

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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.