Home / 20,554.56-28,365.46-11,123.12

Finding the Fourth Proportional to 20,554.56, 28,365.46 and 11,123.12

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Solution

The fourth proportional to 20,554.56, 28,365.46 and 11,123.12 is: 15,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.56 : 28,365.46 = 11,123.12 : x
  2. Step 2: Convert to fraction form
    20,554.56/28,365.46 = 11,123.12/x
  3. Step 3: Cross multiply
    20,554.56x = 28,365.46 × 11,123.12
  4. Step 4: Simplify right side
    20,554.56x = 315,512,458.54
  5. Step 5: Solve for x
    x = 315,512,458.54/20,554.56
  6. Step 6: Final answer
    x = 15,350.00

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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.