Home / 20,079.51-27,713.61-11,587.11

Finding the Fourth Proportional to 20,079.51, 27,713.61 and 11,587.11

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Solution

The fourth proportional to 20,079.51, 27,713.61 and 11,587.11 is: 15,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.51 : 27,713.61 = 11,587.11 : x
  2. Step 2: Convert to fraction form
    20,079.51/27,713.61 = 11,587.11/x
  3. Step 3: Cross multiply
    20,079.51x = 27,713.61 × 11,587.11
  4. Step 4: Simplify right side
    20,079.51x = 321,120,647.57
  5. Step 5: Solve for x
    x = 321,120,647.57/20,079.51
  6. Step 6: Final answer
    x = 15,992.45

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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.