Home / 27,775.12-38,329.44-15,199.84

Finding the Fourth Proportional to 27,775.12, 38,329.44 and 15,199.84

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Solution

The fourth proportional to 27,775.12, 38,329.44 and 15,199.84 is: 20,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.12 : 38,329.44 = 15,199.84 : x
  2. Step 2: Convert to fraction form
    27,775.12/38,329.44 = 15,199.84/x
  3. Step 3: Cross multiply
    27,775.12x = 38,329.44 × 15,199.84
  4. Step 4: Simplify right side
    27,775.12x = 582,601,355.29
  5. Step 5: Solve for x
    x = 582,601,355.29/27,775.12
  6. Step 6: Final answer
    x = 20,975.66

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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.