Home / 27,921.56-41,885.10-9,201.78

Finding the Fourth Proportional to 27,921.56, 41,885.10 and 9,201.78

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Solution

The fourth proportional to 27,921.56, 41,885.10 and 9,201.78 is: 13,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.56 : 41,885.10 = 9,201.78 : x
  2. Step 2: Convert to fraction form
    27,921.56/41,885.10 = 9,201.78/x
  3. Step 3: Cross multiply
    27,921.56x = 41,885.10 × 9,201.78
  4. Step 4: Simplify right side
    27,921.56x = 385,417,475.48
  5. Step 5: Solve for x
    x = 385,417,475.48/27,921.56
  6. Step 6: Final answer
    x = 13,803.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.