Home / 20,095.20-27,727.80-12,132.09

Finding the Fourth Proportional to 20,095.20, 27,727.80 and 12,132.09

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Solution

The fourth proportional to 20,095.20, 27,727.80 and 12,132.09 is: 16,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.20 : 27,727.80 = 12,132.09 : x
  2. Step 2: Convert to fraction form
    20,095.20/27,727.80 = 12,132.09/x
  3. Step 3: Cross multiply
    20,095.20x = 27,727.80 × 12,132.09
  4. Step 4: Simplify right side
    20,095.20x = 336,396,165.10
  5. Step 5: Solve for x
    x = 336,396,165.10/20,095.20
  6. Step 6: Final answer
    x = 16,740.13

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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.