Home / 22,613.26-31,184.08-20,825.38

Finding the Fourth Proportional to 22,613.26, 31,184.08 and 20,825.38

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Solution

The fourth proportional to 22,613.26, 31,184.08 and 20,825.38 is: 28,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.26 : 31,184.08 = 20,825.38 : x
  2. Step 2: Convert to fraction form
    22,613.26/31,184.08 = 20,825.38/x
  3. Step 3: Cross multiply
    22,613.26x = 31,184.08 × 20,825.38
  4. Step 4: Simplify right side
    22,613.26x = 649,420,315.95
  5. Step 5: Solve for x
    x = 649,420,315.95/22,613.26
  6. Step 6: Final answer
    x = 28,718.56

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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.