Home / 20,122.53-30,182.37-5,331.12

Finding the Fourth Proportional to 20,122.53, 30,182.37 and 5,331.12

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Solution

The fourth proportional to 20,122.53, 30,182.37 and 5,331.12 is: 7,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.53 : 30,182.37 = 5,331.12 : x
  2. Step 2: Convert to fraction form
    20,122.53/30,182.37 = 5,331.12/x
  3. Step 3: Cross multiply
    20,122.53x = 30,182.37 × 5,331.12
  4. Step 4: Simplify right side
    20,122.53x = 160,905,836.35
  5. Step 5: Solve for x
    x = 160,905,836.35/20,122.53
  6. Step 6: Final answer
    x = 7,996.30

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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.