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Finding the Fourth Proportional to 30,114.95, 41,559.71 and 18,175.95

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Solution

The fourth proportional to 30,114.95, 41,559.71 and 18,175.95 is: 25,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.95 : 41,559.71 = 18,175.95 : x
  2. Step 2: Convert to fraction form
    30,114.95/41,559.71 = 18,175.95/x
  3. Step 3: Cross multiply
    30,114.95x = 41,559.71 × 18,175.95
  4. Step 4: Simplify right side
    30,114.95x = 755,387,120.09
  5. Step 5: Solve for x
    x = 755,387,120.09/30,114.95
  6. Step 6: Final answer
    x = 25,083.46

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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.