Home / 20,144.49-30,187.56-11,360.73

Finding the Fourth Proportional to 20,144.49, 30,187.56 and 11,360.73

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Solution

The fourth proportional to 20,144.49, 30,187.56 and 11,360.73 is: 17,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.49 : 30,187.56 = 11,360.73 : x
  2. Step 2: Convert to fraction form
    20,144.49/30,187.56 = 11,360.73/x
  3. Step 3: Cross multiply
    20,144.49x = 30,187.56 × 11,360.73
  4. Step 4: Simplify right side
    20,144.49x = 342,952,718.52
  5. Step 5: Solve for x
    x = 342,952,718.52/20,144.49
  6. Step 6: Final answer
    x = 17,024.64

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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.