Home / 20,065.74-27,691.17-11,113.02

Finding the Fourth Proportional to 20,065.74, 27,691.17 and 11,113.02

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Solution

The fourth proportional to 20,065.74, 27,691.17 and 11,113.02 is: 15,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.74 : 27,691.17 = 11,113.02 : x
  2. Step 2: Convert to fraction form
    20,065.74/27,691.17 = 11,113.02/x
  3. Step 3: Cross multiply
    20,065.74x = 27,691.17 × 11,113.02
  4. Step 4: Simplify right side
    20,065.74x = 307,732,526.03
  5. Step 5: Solve for x
    x = 307,732,526.03/20,065.74
  6. Step 6: Final answer
    x = 15,336.22

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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.