Home / 20,255.94-27,948.72-11,753.15

Finding the Fourth Proportional to 20,255.94, 27,948.72 and 11,753.15

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Solution

The fourth proportional to 20,255.94, 27,948.72 and 11,753.15 is: 16,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.94 : 27,948.72 = 11,753.15 : x
  2. Step 2: Convert to fraction form
    20,255.94/27,948.72 = 11,753.15/x
  3. Step 3: Cross multiply
    20,255.94x = 27,948.72 × 11,753.15
  4. Step 4: Simplify right side
    20,255.94x = 328,485,358.72
  5. Step 5: Solve for x
    x = 328,485,358.72/20,255.94
  6. Step 6: Final answer
    x = 16,216.74

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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.