Home / 20,291.34-30,481.02-17,177.70

Finding the Fourth Proportional to 20,291.34, 30,481.02 and 17,177.70

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Solution

The fourth proportional to 20,291.34, 30,481.02 and 17,177.70 is: 25,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.34 : 30,481.02 = 17,177.70 : x
  2. Step 2: Convert to fraction form
    20,291.34/30,481.02 = 17,177.70/x
  3. Step 3: Cross multiply
    20,291.34x = 30,481.02 × 17,177.70
  4. Step 4: Simplify right side
    20,291.34x = 523,593,817.25
  5. Step 5: Solve for x
    x = 523,593,817.25/20,291.34
  6. Step 6: Final answer
    x = 25,803.81

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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.