Home / 20,192.62-27,862.50-11,239.89

Finding the Fourth Proportional to 20,192.62, 27,862.50 and 11,239.89

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Solution

The fourth proportional to 20,192.62, 27,862.50 and 11,239.89 is: 15,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.62 : 27,862.50 = 11,239.89 : x
  2. Step 2: Convert to fraction form
    20,192.62/27,862.50 = 11,239.89/x
  3. Step 3: Cross multiply
    20,192.62x = 27,862.50 × 11,239.89
  4. Step 4: Simplify right side
    20,192.62x = 313,171,435.13
  5. Step 5: Solve for x
    x = 313,171,435.13/20,192.62
  6. Step 6: Final answer
    x = 15,509.20

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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.