Home / 20,182.50-27,851.85-11,800.62

Finding the Fourth Proportional to 20,182.50, 27,851.85 and 11,800.62

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Solution

The fourth proportional to 20,182.50, 27,851.85 and 11,800.62 is: 16,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.50 : 27,851.85 = 11,800.62 : x
  2. Step 2: Convert to fraction form
    20,182.50/27,851.85 = 11,800.62/x
  3. Step 3: Cross multiply
    20,182.50x = 27,851.85 × 11,800.62
  4. Step 4: Simplify right side
    20,182.50x = 328,669,098.15
  5. Step 5: Solve for x
    x = 328,669,098.15/20,182.50
  6. Step 6: Final answer
    x = 16,284.86

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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.