Home / 19,915.66-27,480.39-11,416.22

Finding the Fourth Proportional to 19,915.66, 27,480.39 and 11,416.22

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Solution

The fourth proportional to 19,915.66, 27,480.39 and 11,416.22 is: 15,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.66 : 27,480.39 = 11,416.22 : x
  2. Step 2: Convert to fraction form
    19,915.66/27,480.39 = 11,416.22/x
  3. Step 3: Cross multiply
    19,915.66x = 27,480.39 × 11,416.22
  4. Step 4: Simplify right side
    19,915.66x = 313,722,040.52
  5. Step 5: Solve for x
    x = 313,722,040.52/19,915.66
  6. Step 6: Final answer
    x = 15,752.53

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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.