Home / 20,236.44-27,929.85-15,448.53

Finding the Fourth Proportional to 20,236.44, 27,929.85 and 15,448.53

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Solution

The fourth proportional to 20,236.44, 27,929.85 and 15,448.53 is: 21,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.44 : 27,929.85 = 15,448.53 : x
  2. Step 2: Convert to fraction form
    20,236.44/27,929.85 = 15,448.53/x
  3. Step 3: Cross multiply
    20,236.44x = 27,929.85 × 15,448.53
  4. Step 4: Simplify right side
    20,236.44x = 431,475,125.62
  5. Step 5: Solve for x
    x = 431,475,125.62/20,236.44
  6. Step 6: Final answer
    x = 21,321.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.