Home / 20,064.20-30,125.10-11,316.20

Finding the Fourth Proportional to 20,064.20, 30,125.10 and 11,316.20

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Solution

The fourth proportional to 20,064.20, 30,125.10 and 11,316.20 is: 16,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.20 : 30,125.10 = 11,316.20 : x
  2. Step 2: Convert to fraction form
    20,064.20/30,125.10 = 11,316.20/x
  3. Step 3: Cross multiply
    20,064.20x = 30,125.10 × 11,316.20
  4. Step 4: Simplify right side
    20,064.20x = 340,901,656.62
  5. Step 5: Solve for x
    x = 340,901,656.62/20,064.20
  6. Step 6: Final answer
    x = 16,990.54

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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.