Home / 31,466.26-43,432.66-18,728.40

Finding the Fourth Proportional to 31,466.26, 43,432.66 and 18,728.40

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Solution

The fourth proportional to 31,466.26, 43,432.66 and 18,728.40 is: 25,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,466.26 : 43,432.66 = 18,728.40 : x
  2. Step 2: Convert to fraction form
    31,466.26/43,432.66 = 18,728.40/x
  3. Step 3: Cross multiply
    31,466.26x = 43,432.66 × 18,728.40
  4. Step 4: Simplify right side
    31,466.26x = 813,424,229.54
  5. Step 5: Solve for x
    x = 813,424,229.54/31,466.26
  6. Step 6: Final answer
    x = 25,850.68

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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.