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Finding the Fourth Proportional to 18,343.40, 27,515.10 and 17,104.10

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Solution

The fourth proportional to 18,343.40, 27,515.10 and 17,104.10 is: 25,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.40 : 27,515.10 = 17,104.10 : x
  2. Step 2: Convert to fraction form
    18,343.40/27,515.10 = 17,104.10/x
  3. Step 3: Cross multiply
    18,343.40x = 27,515.10 × 17,104.10
  4. Step 4: Simplify right side
    18,343.40x = 470,621,021.91
  5. Step 5: Solve for x
    x = 470,621,021.91/18,343.40
  6. Step 6: Final answer
    x = 25,656.15

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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.