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Finding the Fourth Proportional to 27,773.88, 38,328.06 and 15,199.32

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Solution

The fourth proportional to 27,773.88, 38,328.06 and 15,199.32 is: 20,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,773.88 : 38,328.06 = 15,199.32 : x
  2. Step 2: Convert to fraction form
    27,773.88/38,328.06 = 15,199.32/x
  3. Step 3: Cross multiply
    27,773.88x = 38,328.06 × 15,199.32
  4. Step 4: Simplify right side
    27,773.88x = 582,560,448.92
  5. Step 5: Solve for x
    x = 582,560,448.92/27,773.88
  6. Step 6: Final answer
    x = 20,975.12

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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.