Home / 20,955.49-28,918.00-11,524.05

Finding the Fourth Proportional to 20,955.49, 28,918.00 and 11,524.05

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Solution

The fourth proportional to 20,955.49, 28,918.00 and 11,524.05 is: 15,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955.49 : 28,918.00 = 11,524.05 : x
  2. Step 2: Convert to fraction form
    20,955.49/28,918.00 = 11,524.05/x
  3. Step 3: Cross multiply
    20,955.49x = 28,918.00 × 11,524.05
  4. Step 4: Simplify right side
    20,955.49x = 333,252,600.75
  5. Step 5: Solve for x
    x = 333,252,600.75/20,955.49
  6. Step 6: Final answer
    x = 15,902.88

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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.