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Finding the Fourth Proportional to 18,460.26, 27,651.15 and 17,138.34

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Solution

The fourth proportional to 18,460.26, 27,651.15 and 17,138.34 is: 25,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.26 : 27,651.15 = 17,138.34 : x
  2. Step 2: Convert to fraction form
    18,460.26/27,651.15 = 17,138.34/x
  3. Step 3: Cross multiply
    18,460.26x = 27,651.15 × 17,138.34
  4. Step 4: Simplify right side
    18,460.26x = 473,894,810.09
  5. Step 5: Solve for x
    x = 473,894,810.09/18,460.26
  6. Step 6: Final answer
    x = 25,671.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.