Home / 27,872.18-38,466.30-15,933.24

Finding the Fourth Proportional to 27,872.18, 38,466.30 and 15,933.24

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Solution

The fourth proportional to 27,872.18, 38,466.30 and 15,933.24 is: 21,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.18 : 38,466.30 = 15,933.24 : x
  2. Step 2: Convert to fraction form
    27,872.18/38,466.30 = 15,933.24/x
  3. Step 3: Cross multiply
    27,872.18x = 38,466.30 × 15,933.24
  4. Step 4: Simplify right side
    27,872.18x = 612,892,789.81
  5. Step 5: Solve for x
    x = 612,892,789.81/27,872.18
  6. Step 6: Final answer
    x = 21,989.41

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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.