Home / 20,042.88-27,660.18-12,087.66

Finding the Fourth Proportional to 20,042.88, 27,660.18 and 12,087.66

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Solution

The fourth proportional to 20,042.88, 27,660.18 and 12,087.66 is: 16,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.88 : 27,660.18 = 12,087.66 : x
  2. Step 2: Convert to fraction form
    20,042.88/27,660.18 = 12,087.66/x
  3. Step 3: Cross multiply
    20,042.88x = 27,660.18 × 12,087.66
  4. Step 4: Simplify right side
    20,042.88x = 334,346,851.38
  5. Step 5: Solve for x
    x = 334,346,851.38/20,042.88
  6. Step 6: Final answer
    x = 16,681.58

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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.