Home / 20,176.75-27,842.64-11,224.02

Finding the Fourth Proportional to 20,176.75, 27,842.64 and 11,224.02

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Solution

The fourth proportional to 20,176.75, 27,842.64 and 11,224.02 is: 15,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.75 : 27,842.64 = 11,224.02 : x
  2. Step 2: Convert to fraction form
    20,176.75/27,842.64 = 11,224.02/x
  3. Step 3: Cross multiply
    20,176.75x = 27,842.64 × 11,224.02
  4. Step 4: Simplify right side
    20,176.75x = 312,506,253.92
  5. Step 5: Solve for x
    x = 312,506,253.92/20,176.75
  6. Step 6: Final answer
    x = 15,488.44

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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.