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Finding the Fourth Proportional to 17,419.60, 26,118.60 and 10,020.40

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Solution

The fourth proportional to 17,419.60, 26,118.60 and 10,020.40 is: 15,024.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,419.60 : 26,118.60 = 10,020.40 : x
  2. Step 2: Convert to fraction form
    17,419.60/26,118.60 = 10,020.40/x
  3. Step 3: Cross multiply
    17,419.60x = 26,118.60 × 10,020.40
  4. Step 4: Simplify right side
    17,419.60x = 261,718,819.44
  5. Step 5: Solve for x
    x = 261,718,819.44/17,419.60
  6. Step 6: Final answer
    x = 15,024.39

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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.