Home / 27,772.50-38,326.05-15,197.25

Finding the Fourth Proportional to 27,772.50, 38,326.05 and 15,197.25

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Solution

The fourth proportional to 27,772.50, 38,326.05 and 15,197.25 is: 20,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.50 : 38,326.05 = 15,197.25 : x
  2. Step 2: Convert to fraction form
    27,772.50/38,326.05 = 15,197.25/x
  3. Step 3: Cross multiply
    27,772.50x = 38,326.05 × 15,197.25
  4. Step 4: Simplify right side
    27,772.50x = 582,450,563.36
  5. Step 5: Solve for x
    x = 582,450,563.36/27,772.50
  6. Step 6: Final answer
    x = 20,972.21

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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.