Home / 20,148.24-27,802.62-11,195.20

Finding the Fourth Proportional to 20,148.24, 27,802.62 and 11,195.20

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Solution

The fourth proportional to 20,148.24, 27,802.62 and 11,195.20 is: 15,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.24 : 27,802.62 = 11,195.20 : x
  2. Step 2: Convert to fraction form
    20,148.24/27,802.62 = 11,195.20/x
  3. Step 3: Cross multiply
    20,148.24x = 27,802.62 × 11,195.20
  4. Step 4: Simplify right side
    20,148.24x = 311,255,891.42
  5. Step 5: Solve for x
    x = 311,255,891.42/20,148.24
  6. Step 6: Final answer
    x = 15,448.29

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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.