Home / 17,685.75-24,393.85-15,014.78

Finding the Fourth Proportional to 17,685.75, 24,393.85 and 15,014.78

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Solution

The fourth proportional to 17,685.75, 24,393.85 and 15,014.78 is: 20,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.75 : 24,393.85 = 15,014.78 : x
  2. Step 2: Convert to fraction form
    17,685.75/24,393.85 = 15,014.78/x
  3. Step 3: Cross multiply
    17,685.75x = 24,393.85 × 15,014.78
  4. Step 4: Simplify right side
    17,685.75x = 366,268,131.60
  5. Step 5: Solve for x
    x = 366,268,131.60/17,685.75
  6. Step 6: Final answer
    x = 20,709.79

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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.