Home / 21,823.36-30,116.24-11,887.36

Finding the Fourth Proportional to 21,823.36, 30,116.24 and 11,887.36

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Solution

The fourth proportional to 21,823.36, 30,116.24 and 11,887.36 is: 16,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.36 : 30,116.24 = 11,887.36 : x
  2. Step 2: Convert to fraction form
    21,823.36/30,116.24 = 11,887.36/x
  3. Step 3: Cross multiply
    21,823.36x = 30,116.24 × 11,887.36
  4. Step 4: Simplify right side
    21,823.36x = 358,002,586.73
  5. Step 5: Solve for x
    x = 358,002,586.73/21,823.36
  6. Step 6: Final answer
    x = 16,404.56

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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.