Home / 21,177.57-31,773.28-15,249.60

Finding the Fourth Proportional to 21,177.57, 31,773.28 and 15,249.60

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Solution

The fourth proportional to 21,177.57, 31,773.28 and 15,249.60 is: 22,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.57 : 31,773.28 = 15,249.60 : x
  2. Step 2: Convert to fraction form
    21,177.57/31,773.28 = 15,249.60/x
  3. Step 3: Cross multiply
    21,177.57x = 31,773.28 × 15,249.60
  4. Step 4: Simplify right side
    21,177.57x = 484,529,810.69
  5. Step 5: Solve for x
    x = 484,529,810.69/21,177.57
  6. Step 6: Final answer
    x = 22,879.39

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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.