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Finding the Fourth Proportional to 17,581.20, 26,386.20 and 17,005.20

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Solution

The fourth proportional to 17,581.20, 26,386.20 and 17,005.20 is: 25,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,581.20 : 26,386.20 = 17,005.20 : x
  2. Step 2: Convert to fraction form
    17,581.20/26,386.20 = 17,005.20/x
  3. Step 3: Cross multiply
    17,581.20x = 26,386.20 × 17,005.20
  4. Step 4: Simplify right side
    17,581.20x = 448,702,608.24
  5. Step 5: Solve for x
    x = 448,702,608.24/17,581.20
  6. Step 6: Final answer
    x = 25,521.73

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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.