Home / 20,199.68-27,875.14-11,246.65

Finding the Fourth Proportional to 20,199.68, 27,875.14 and 11,246.65

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Solution

The fourth proportional to 20,199.68, 27,875.14 and 11,246.65 is: 15,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.68 : 27,875.14 = 11,246.65 : x
  2. Step 2: Convert to fraction form
    20,199.68/27,875.14 = 11,246.65/x
  3. Step 3: Cross multiply
    20,199.68x = 27,875.14 × 11,246.65
  4. Step 4: Simplify right side
    20,199.68x = 313,501,845.48
  5. Step 5: Solve for x
    x = 313,501,845.48/20,199.68
  6. Step 6: Final answer
    x = 15,520.14

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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.