Home / 20,201.65-27,878.30-11,250.88

Finding the Fourth Proportional to 20,201.65, 27,878.30 and 11,250.88

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Solution

The fourth proportional to 20,201.65, 27,878.30 and 11,250.88 is: 15,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.65 : 27,878.30 = 11,250.88 : x
  2. Step 2: Convert to fraction form
    20,201.65/27,878.30 = 11,250.88/x
  3. Step 3: Cross multiply
    20,201.65x = 27,878.30 × 11,250.88
  4. Step 4: Simplify right side
    20,201.65x = 313,655,407.90
  5. Step 5: Solve for x
    x = 313,655,407.90/20,201.65
  6. Step 6: Final answer
    x = 15,526.23

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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.