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Finding the Fourth Proportional to 26,671.29, 40,020.90 and 17,309.10

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Solution

The fourth proportional to 26,671.29, 40,020.90 and 17,309.10 is: 25,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,671.29 : 40,020.90 = 17,309.10 : x
  2. Step 2: Convert to fraction form
    26,671.29/40,020.90 = 17,309.10/x
  3. Step 3: Cross multiply
    26,671.29x = 40,020.90 × 17,309.10
  4. Step 4: Simplify right side
    26,671.29x = 692,725,760.19
  5. Step 5: Solve for x
    x = 692,725,760.19/26,671.29
  6. Step 6: Final answer
    x = 25,972.71

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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.