Home / 20,085.15-27,717.03-11,587.29

Finding the Fourth Proportional to 20,085.15, 27,717.03 and 11,587.29

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Solution

The fourth proportional to 20,085.15, 27,717.03 and 11,587.29 is: 15,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.15 : 27,717.03 = 11,587.29 : x
  2. Step 2: Convert to fraction form
    20,085.15/27,717.03 = 11,587.29/x
  3. Step 3: Cross multiply
    20,085.15x = 27,717.03 × 11,587.29
  4. Step 4: Simplify right side
    20,085.15x = 321,165,160.61
  5. Step 5: Solve for x
    x = 321,165,160.61/20,085.15
  6. Step 6: Final answer
    x = 15,990.18

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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.