Home / 20,081.30-27,712.15-11,583.29

Finding the Fourth Proportional to 20,081.30, 27,712.15 and 11,583.29

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Solution

The fourth proportional to 20,081.30, 27,712.15 and 11,583.29 is: 15,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.30 : 27,712.15 = 11,583.29 : x
  2. Step 2: Convert to fraction form
    20,081.30/27,712.15 = 11,583.29/x
  3. Step 3: Cross multiply
    20,081.30x = 27,712.15 × 11,583.29
  4. Step 4: Simplify right side
    20,081.30x = 320,997,731.41
  5. Step 5: Solve for x
    x = 320,997,731.41/20,081.30
  6. Step 6: Final answer
    x = 15,984.91

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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.