Home / 34,540.11-47,661.75-19,431.48

Finding the Fourth Proportional to 34,540.11, 47,661.75 and 19,431.48

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Solution

The fourth proportional to 34,540.11, 47,661.75 and 19,431.48 is: 26,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.11 : 47,661.75 = 19,431.48 : x
  2. Step 2: Convert to fraction form
    34,540.11/47,661.75 = 19,431.48/x
  3. Step 3: Cross multiply
    34,540.11x = 47,661.75 × 19,431.48
  4. Step 4: Simplify right side
    34,540.11x = 926,138,520.62
  5. Step 5: Solve for x
    x = 926,138,520.62/34,540.11
  6. Step 6: Final answer
    x = 26,813.42

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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.