Home / 26,687.40-40,031.10-16,845.90

Finding the Fourth Proportional to 26,687.40, 40,031.10 and 16,845.90

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Solution

The fourth proportional to 26,687.40, 40,031.10 and 16,845.90 is: 25,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.40 : 40,031.10 = 16,845.90 : x
  2. Step 2: Convert to fraction form
    26,687.40/40,031.10 = 16,845.90/x
  3. Step 3: Cross multiply
    26,687.40x = 40,031.10 × 16,845.90
  4. Step 4: Simplify right side
    26,687.40x = 674,359,907.49
  5. Step 5: Solve for x
    x = 674,359,907.49/26,687.40
  6. Step 6: Final answer
    x = 25,268.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.