Home / 27,776.48-38,331.36-15,201.20

Finding the Fourth Proportional to 27,776.48, 38,331.36 and 15,201.20

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Solution

The fourth proportional to 27,776.48, 38,331.36 and 15,201.20 is: 20,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,776.48 : 38,331.36 = 15,201.20 : x
  2. Step 2: Convert to fraction form
    27,776.48/38,331.36 = 15,201.20/x
  3. Step 3: Cross multiply
    27,776.48x = 38,331.36 × 15,201.20
  4. Step 4: Simplify right side
    27,776.48x = 582,682,669.63
  5. Step 5: Solve for x
    x = 582,682,669.63/27,776.48
  6. Step 6: Final answer
    x = 20,977.56

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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.