Home / 20,064.12-27,687.30-11,111.12

Finding the Fourth Proportional to 20,064.12, 27,687.30 and 11,111.12

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Solution

The fourth proportional to 20,064.12, 27,687.30 and 11,111.12 is: 15,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.12 : 27,687.30 = 11,111.12 : x
  2. Step 2: Convert to fraction form
    20,064.12/27,687.30 = 11,111.12/x
  3. Step 3: Cross multiply
    20,064.12x = 27,687.30 × 11,111.12
  4. Step 4: Simplify right side
    20,064.12x = 307,636,912.78
  5. Step 5: Solve for x
    x = 307,636,912.78/20,064.12
  6. Step 6: Final answer
    x = 15,332.69

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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.