Home / 20,098.54-27,736.66-12,139.18

Finding the Fourth Proportional to 20,098.54, 27,736.66 and 12,139.18

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Solution

The fourth proportional to 20,098.54, 27,736.66 and 12,139.18 is: 16,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.54 : 27,736.66 = 12,139.18 : x
  2. Step 2: Convert to fraction form
    20,098.54/27,736.66 = 12,139.18/x
  3. Step 3: Cross multiply
    20,098.54x = 27,736.66 × 12,139.18
  4. Step 4: Simplify right side
    20,098.54x = 336,700,308.34
  5. Step 5: Solve for x
    x = 336,700,308.34/20,098.54
  6. Step 6: Final answer
    x = 16,752.48

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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.