Home / 21,459.73-29,614.78-11,900.02

Finding the Fourth Proportional to 21,459.73, 29,614.78 and 11,900.02

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Solution

The fourth proportional to 21,459.73, 29,614.78 and 11,900.02 is: 16,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.73 : 29,614.78 = 11,900.02 : x
  2. Step 2: Convert to fraction form
    21,459.73/29,614.78 = 11,900.02/x
  3. Step 3: Cross multiply
    21,459.73x = 29,614.78 × 11,900.02
  4. Step 4: Simplify right side
    21,459.73x = 352,416,474.30
  5. Step 5: Solve for x
    x = 352,416,474.30/21,459.73
  6. Step 6: Final answer
    x = 16,422.22

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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.