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Finding the Fourth Proportional to 26,803.60, 40,223.16 and 11,221.20

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Solution

The fourth proportional to 26,803.60, 40,223.16 and 11,221.20 is: 16,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,803.60 : 40,223.16 = 11,221.20 : x
  2. Step 2: Convert to fraction form
    26,803.60/40,223.16 = 11,221.20/x
  3. Step 3: Cross multiply
    26,803.60x = 40,223.16 × 11,221.20
  4. Step 4: Simplify right side
    26,803.60x = 451,352,122.99
  5. Step 5: Solve for x
    x = 451,352,122.99/26,803.60
  6. Step 6: Final answer
    x = 16,839.24

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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.