Home / 26,872.92-40,320.36-12,071.52

Finding the Fourth Proportional to 26,872.92, 40,320.36 and 12,071.52

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Solution

The fourth proportional to 26,872.92, 40,320.36 and 12,071.52 is: 18,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,872.92 : 40,320.36 = 12,071.52 : x
  2. Step 2: Convert to fraction form
    26,872.92/40,320.36 = 12,071.52/x
  3. Step 3: Cross multiply
    26,872.92x = 40,320.36 × 12,071.52
  4. Step 4: Simplify right side
    26,872.92x = 486,728,032.15
  5. Step 5: Solve for x
    x = 486,728,032.15/26,872.92
  6. Step 6: Final answer
    x = 18,112.21

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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.