Home / 20,031.44-27,643.14-11,079.11

Finding the Fourth Proportional to 20,031.44, 27,643.14 and 11,079.11

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Solution

The fourth proportional to 20,031.44, 27,643.14 and 11,079.11 is: 15,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.44 : 27,643.14 = 11,079.11 : x
  2. Step 2: Convert to fraction form
    20,031.44/27,643.14 = 11,079.11/x
  3. Step 3: Cross multiply
    20,031.44x = 27,643.14 × 11,079.11
  4. Step 4: Simplify right side
    20,031.44x = 306,261,457.91
  5. Step 5: Solve for x
    x = 306,261,457.91/20,031.44
  6. Step 6: Final answer
    x = 15,289.04

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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.