Home / 27,883.43-38,479.41-15,136.71

Finding the Fourth Proportional to 27,883.43, 38,479.41 and 15,136.71

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Solution

The fourth proportional to 27,883.43, 38,479.41 and 15,136.71 is: 20,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,883.43 : 38,479.41 = 15,136.71 : x
  2. Step 2: Convert to fraction form
    27,883.43/38,479.41 = 15,136.71/x
  3. Step 3: Cross multiply
    27,883.43x = 38,479.41 × 15,136.71
  4. Step 4: Simplify right side
    27,883.43x = 582,451,670.14
  5. Step 5: Solve for x
    x = 582,451,670.14/27,883.43
  6. Step 6: Final answer
    x = 20,888.81

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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.