Home / 20,098.47-27,731.88-12,141.15

Finding the Fourth Proportional to 20,098.47, 27,731.88 and 12,141.15

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Solution

The fourth proportional to 20,098.47, 27,731.88 and 12,141.15 is: 16,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.47 : 27,731.88 = 12,141.15 : x
  2. Step 2: Convert to fraction form
    20,098.47/27,731.88 = 12,141.15/x
  3. Step 3: Cross multiply
    20,098.47x = 27,731.88 × 12,141.15
  4. Step 4: Simplify right side
    20,098.47x = 336,696,914.86
  5. Step 5: Solve for x
    x = 336,696,914.86/20,098.47
  6. Step 6: Final answer
    x = 16,752.37

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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.