Home / 20,013.78-27,617.67-11,061.30

Finding the Fourth Proportional to 20,013.78, 27,617.67 and 11,061.30

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Solution

The fourth proportional to 20,013.78, 27,617.67 and 11,061.30 is: 15,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.78 : 27,617.67 = 11,061.30 : x
  2. Step 2: Convert to fraction form
    20,013.78/27,617.67 = 11,061.30/x
  3. Step 3: Cross multiply
    20,013.78x = 27,617.67 × 11,061.30
  4. Step 4: Simplify right side
    20,013.78x = 305,487,333.17
  5. Step 5: Solve for x
    x = 305,487,333.17/20,013.78
  6. Step 6: Final answer
    x = 15,263.85

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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.