Home / 20,156.96-27,816.36-11,204.48

Finding the Fourth Proportional to 20,156.96, 27,816.36 and 11,204.48

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Solution

The fourth proportional to 20,156.96, 27,816.36 and 11,204.48 is: 15,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.96 : 27,816.36 = 11,204.48 : x
  2. Step 2: Convert to fraction form
    20,156.96/27,816.36 = 11,204.48/x
  3. Step 3: Cross multiply
    20,156.96x = 27,816.36 × 11,204.48
  4. Step 4: Simplify right side
    20,156.96x = 311,667,849.29
  5. Step 5: Solve for x
    x = 311,667,849.29/20,156.96
  6. Step 6: Final answer
    x = 15,462.05

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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.