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Finding the Fourth Proportional to 29,034.52, 40,074.15 and 18,945.16

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Solution

The fourth proportional to 29,034.52, 40,074.15 and 18,945.16 is: 26,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,034.52 : 40,074.15 = 18,945.16 : x
  2. Step 2: Convert to fraction form
    29,034.52/40,074.15 = 18,945.16/x
  3. Step 3: Cross multiply
    29,034.52x = 40,074.15 × 18,945.16
  4. Step 4: Simplify right side
    29,034.52x = 759,211,183.61
  5. Step 5: Solve for x
    x = 759,211,183.61/29,034.52
  6. Step 6: Final answer
    x = 26,148.57

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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.