Home / 20,144.66-27,798.84-11,192.72

Finding the Fourth Proportional to 20,144.66, 27,798.84 and 11,192.72

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Solution

The fourth proportional to 20,144.66, 27,798.84 and 11,192.72 is: 15,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.66 : 27,798.84 = 11,192.72 : x
  2. Step 2: Convert to fraction form
    20,144.66/27,798.84 = 11,192.72/x
  3. Step 3: Cross multiply
    20,144.66x = 27,798.84 × 11,192.72
  4. Step 4: Simplify right side
    20,144.66x = 311,144,632.44
  5. Step 5: Solve for x
    x = 311,144,632.44/20,144.66
  6. Step 6: Final answer
    x = 15,445.51

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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.