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Finding the Fourth Proportional to 26,709.84, 40,062.84 and 11,920.08

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Solution

The fourth proportional to 26,709.84, 40,062.84 and 11,920.08 is: 17,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,709.84 : 40,062.84 = 11,920.08 : x
  2. Step 2: Convert to fraction form
    26,709.84/40,062.84 = 11,920.08/x
  3. Step 3: Cross multiply
    26,709.84x = 40,062.84 × 11,920.08
  4. Step 4: Simplify right side
    26,709.84x = 477,552,257.83
  5. Step 5: Solve for x
    x = 477,552,257.83/26,709.84
  6. Step 6: Final answer
    x = 17,879.26

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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.