Home / 36,428.32-54,608.26-12,721.24

Finding the Fourth Proportional to 36,428.32, 54,608.26 and 12,721.24

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Solution

The fourth proportional to 36,428.32, 54,608.26 and 12,721.24 is: 19,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,428.32 : 54,608.26 = 12,721.24 : x
  2. Step 2: Convert to fraction form
    36,428.32/54,608.26 = 12,721.24/x
  3. Step 3: Cross multiply
    36,428.32x = 54,608.26 × 12,721.24
  4. Step 4: Simplify right side
    36,428.32x = 694,684,781.44
  5. Step 5: Solve for x
    x = 694,684,781.44/36,428.32
  6. Step 6: Final answer
    x = 19,069.91

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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.