Home / 21,299.76-29,395.44-11,867.04

Finding the Fourth Proportional to 21,299.76, 29,395.44 and 11,867.04

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Solution

The fourth proportional to 21,299.76, 29,395.44 and 11,867.04 is: 16,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.76 : 29,395.44 = 11,867.04 : x
  2. Step 2: Convert to fraction form
    21,299.76/29,395.44 = 11,867.04/x
  3. Step 3: Cross multiply
    21,299.76x = 29,395.44 × 11,867.04
  4. Step 4: Simplify right side
    21,299.76x = 348,836,862.30
  5. Step 5: Solve for x
    x = 348,836,862.30/21,299.76
  6. Step 6: Final answer
    x = 16,377.50

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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.