Home / 27,142.21-40,713.41-9,612.55

Finding the Fourth Proportional to 27,142.21, 40,713.41 and 9,612.55

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Solution

The fourth proportional to 27,142.21, 40,713.41 and 9,612.55 is: 14,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.21 : 40,713.41 = 9,612.55 : x
  2. Step 2: Convert to fraction form
    27,142.21/40,713.41 = 9,612.55/x
  3. Step 3: Cross multiply
    27,142.21x = 40,713.41 × 9,612.55
  4. Step 4: Simplify right side
    27,142.21x = 391,359,689.30
  5. Step 5: Solve for x
    x = 391,359,689.30/27,142.21
  6. Step 6: Final answer
    x = 14,418.86

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1.5x scale

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.