Home / 20,716.47-31,076.73-8,233.70

Finding the Fourth Proportional to 20,716.47, 31,076.73 and 8,233.70

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Solution

The fourth proportional to 20,716.47, 31,076.73 and 8,233.70 is: 12,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.47 : 31,076.73 = 8,233.70 : x
  2. Step 2: Convert to fraction form
    20,716.47/31,076.73 = 8,233.70/x
  3. Step 3: Cross multiply
    20,716.47x = 31,076.73 × 8,233.70
  4. Step 4: Simplify right side
    20,716.47x = 255,876,316.42
  5. Step 5: Solve for x
    x = 255,876,316.42/20,716.47
  6. Step 6: Final answer
    x = 12,351.35

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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.