Home / 22,718.68-31,350.85-12,647.34

Finding the Fourth Proportional to 22,718.68, 31,350.85 and 12,647.34

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Solution

The fourth proportional to 22,718.68, 31,350.85 and 12,647.34 is: 17,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.68 : 31,350.85 = 12,647.34 : x
  2. Step 2: Convert to fraction form
    22,718.68/31,350.85 = 12,647.34/x
  3. Step 3: Cross multiply
    22,718.68x = 31,350.85 × 12,647.34
  4. Step 4: Simplify right side
    22,718.68x = 396,504,827.62
  5. Step 5: Solve for x
    x = 396,504,827.62/22,718.68
  6. Step 6: Final answer
    x = 17,452.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.