Home / 27,777.75-38,334.11-15,203.31

Finding the Fourth Proportional to 27,777.75, 38,334.11 and 15,203.31

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Solution

The fourth proportional to 27,777.75, 38,334.11 and 15,203.31 is: 20,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.75 : 38,334.11 = 15,203.31 : x
  2. Step 2: Convert to fraction form
    27,777.75/38,334.11 = 15,203.31/x
  3. Step 3: Cross multiply
    27,777.75x = 38,334.11 × 15,203.31
  4. Step 4: Simplify right side
    27,777.75x = 582,805,281.89
  5. Step 5: Solve for x
    x = 582,805,281.89/27,777.75
  6. Step 6: Final answer
    x = 20,981.01

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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.