Home / 20,079.14-27,706.95-11,124.38

Finding the Fourth Proportional to 20,079.14, 27,706.95 and 11,124.38

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Solution

The fourth proportional to 20,079.14, 27,706.95 and 11,124.38 is: 15,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.14 : 27,706.95 = 11,124.38 : x
  2. Step 2: Convert to fraction form
    20,079.14/27,706.95 = 11,124.38/x
  3. Step 3: Cross multiply
    20,079.14x = 27,706.95 × 11,124.38
  4. Step 4: Simplify right side
    20,079.14x = 308,222,501.91
  5. Step 5: Solve for x
    x = 308,222,501.91/20,079.14
  6. Step 6: Final answer
    x = 15,350.39

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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.