Home / 20,087.26-27,721.13-12,127.93

Finding the Fourth Proportional to 20,087.26, 27,721.13 and 12,127.93

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Solution

The fourth proportional to 20,087.26, 27,721.13 and 12,127.93 is: 16,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.26 : 27,721.13 = 12,127.93 : x
  2. Step 2: Convert to fraction form
    20,087.26/27,721.13 = 12,127.93/x
  3. Step 3: Cross multiply
    20,087.26x = 27,721.13 × 12,127.93
  4. Step 4: Simplify right side
    20,087.26x = 336,199,924.16
  5. Step 5: Solve for x
    x = 336,199,924.16/20,087.26
  6. Step 6: Final answer
    x = 16,736.97

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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.