Home / 20,104.35-27,746.72-12,146.91

Finding the Fourth Proportional to 20,104.35, 27,746.72 and 12,146.91

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Solution

The fourth proportional to 20,104.35, 27,746.72 and 12,146.91 is: 16,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.35 : 27,746.72 = 12,146.91 : x
  2. Step 2: Convert to fraction form
    20,104.35/27,746.72 = 12,146.91/x
  3. Step 3: Cross multiply
    20,104.35x = 27,746.72 × 12,146.91
  4. Step 4: Simplify right side
    20,104.35x = 337,036,849.90
  5. Step 5: Solve for x
    x = 337,036,849.90/20,104.35
  6. Step 6: Final answer
    x = 16,764.37

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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.