Home / 20,982.15-31,462.38-6,189.19

Finding the Fourth Proportional to 20,982.15, 31,462.38 and 6,189.19

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Solution

The fourth proportional to 20,982.15, 31,462.38 and 6,189.19 is: 9,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.15 : 31,462.38 = 6,189.19 : x
  2. Step 2: Convert to fraction form
    20,982.15/31,462.38 = 6,189.19/x
  3. Step 3: Cross multiply
    20,982.15x = 31,462.38 × 6,189.19
  4. Step 4: Simplify right side
    20,982.15x = 194,726,647.67
  5. Step 5: Solve for x
    x = 194,726,647.67/20,982.15
  6. Step 6: Final answer
    x = 9,280.59

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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.