Home / 20,266.25-27,963.36-11,312.33

Finding the Fourth Proportional to 20,266.25, 27,963.36 and 11,312.33

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Solution

The fourth proportional to 20,266.25, 27,963.36 and 11,312.33 is: 15,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.25 : 27,963.36 = 11,312.33 : x
  2. Step 2: Convert to fraction form
    20,266.25/27,963.36 = 11,312.33/x
  3. Step 3: Cross multiply
    20,266.25x = 27,963.36 × 11,312.33
  4. Step 4: Simplify right side
    20,266.25x = 316,330,616.41
  5. Step 5: Solve for x
    x = 316,330,616.41/20,266.25
  6. Step 6: Final answer
    x = 15,608.74

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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.