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Finding the Fourth Proportional to 26,145, 39,195.45 and 11,342.78

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Solution

The fourth proportional to 26,145, 39,195.45 and 11,342.78 is: 17,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,145 : 39,195.45 = 11,342.78 : x
  2. Step 2: Convert to fraction form
    26,145/39,195.45 = 11,342.78/x
  3. Step 3: Cross multiply
    26,145x = 39,195.45 × 11,342.78
  4. Step 4: Simplify right side
    26,145x = 444,585,366.35
  5. Step 5: Solve for x
    x = 444,585,366.35/26,145
  6. Step 6: Final answer
    x = 17,004.60

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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.