Home / 20,879.15-31,318.82-6,088.14

Finding the Fourth Proportional to 20,879.15, 31,318.82 and 6,088.14

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Solution

The fourth proportional to 20,879.15, 31,318.82 and 6,088.14 is: 9,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.15 : 31,318.82 = 6,088.14 : x
  2. Step 2: Convert to fraction form
    20,879.15/31,318.82 = 6,088.14/x
  3. Step 3: Cross multiply
    20,879.15x = 31,318.82 × 6,088.14
  4. Step 4: Simplify right side
    20,879.15x = 190,673,330.35
  5. Step 5: Solve for x
    x = 190,673,330.35/20,879.15
  6. Step 6: Final answer
    x = 9,132.24

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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.