Home / 20,084.96-27,716.52-11,133.28

Finding the Fourth Proportional to 20,084.96, 27,716.52 and 11,133.28

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Solution

The fourth proportional to 20,084.96, 27,716.52 and 11,133.28 is: 15,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.96 : 27,716.52 = 11,133.28 : x
  2. Step 2: Convert to fraction form
    20,084.96/27,716.52 = 11,133.28/x
  3. Step 3: Cross multiply
    20,084.96x = 27,716.52 × 11,133.28
  4. Step 4: Simplify right side
    20,084.96x = 308,575,777.79
  5. Step 5: Solve for x
    x = 308,575,777.79/20,084.96
  6. Step 6: Final answer
    x = 15,363.52

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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.