Home / 20,026.20-27,638.90-11,528.14

Finding the Fourth Proportional to 20,026.20, 27,638.90 and 11,528.14

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Solution

The fourth proportional to 20,026.20, 27,638.90 and 11,528.14 is: 15,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.20 : 27,638.90 = 11,528.14 : x
  2. Step 2: Convert to fraction form
    20,026.20/27,638.90 = 11,528.14/x
  3. Step 3: Cross multiply
    20,026.20x = 27,638.90 × 11,528.14
  4. Step 4: Simplify right side
    20,026.20x = 318,625,108.65
  5. Step 5: Solve for x
    x = 318,625,108.65/20,026.20
  6. Step 6: Final answer
    x = 15,910.41

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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.