Home / 27,777.36-38,331.28-15,199.68

Finding the Fourth Proportional to 27,777.36, 38,331.28 and 15,199.68

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Solution

The fourth proportional to 27,777.36, 38,331.28 and 15,199.68 is: 20,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.36 : 38,331.28 = 15,199.68 : x
  2. Step 2: Convert to fraction form
    27,777.36/38,331.28 = 15,199.68/x
  3. Step 3: Cross multiply
    27,777.36x = 38,331.28 × 15,199.68
  4. Step 4: Simplify right side
    27,777.36x = 582,623,189.99
  5. Step 5: Solve for x
    x = 582,623,189.99/27,777.36
  6. Step 6: Final answer
    x = 20,974.75

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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.