Home / 39,286.18-54,078-34,241.63

Finding the Fourth Proportional to 39,286.18, 54,078 and 34,241.63

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Solution

The fourth proportional to 39,286.18, 54,078 and 34,241.63 is: 47,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286.18 : 54,078 = 34,241.63 : x
  2. Step 2: Convert to fraction form
    39,286.18/54,078 = 34,241.63/x
  3. Step 3: Cross multiply
    39,286.18x = 54,078 × 34,241.63
  4. Step 4: Simplify right side
    39,286.18x = 1,851,718,867.14
  5. Step 5: Solve for x
    x = 1,851,718,867.14/39,286.18
  6. Step 6: Final answer
    x = 47,134.10

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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.