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Finding the Fourth Proportional to 17,756.76, 26,589.60 and 17,231.20

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Solution

The fourth proportional to 17,756.76, 26,589.60 and 17,231.20 is: 25,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,756.76 : 26,589.60 = 17,231.20 : x
  2. Step 2: Convert to fraction form
    17,756.76/26,589.60 = 17,231.20/x
  3. Step 3: Cross multiply
    17,756.76x = 26,589.60 × 17,231.20
  4. Step 4: Simplify right side
    17,756.76x = 458,170,715.52
  5. Step 5: Solve for x
    x = 458,170,715.52/17,756.76
  6. Step 6: Final answer
    x = 25,802.61

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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.