Home / 20,534.86-30,815.96-11,177.23

Finding the Fourth Proportional to 20,534.86, 30,815.96 and 11,177.23

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Solution

The fourth proportional to 20,534.86, 30,815.96 and 11,177.23 is: 16,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.86 : 30,815.96 = 11,177.23 : x
  2. Step 2: Convert to fraction form
    20,534.86/30,815.96 = 11,177.23/x
  3. Step 3: Cross multiply
    20,534.86x = 30,815.96 × 11,177.23
  4. Step 4: Simplify right side
    20,534.86x = 344,437,055.22
  5. Step 5: Solve for x
    x = 344,437,055.22/20,534.86
  6. Step 6: Final answer
    x = 16,773.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.