Home / 21,984.54-30,338.66-11,913.04

Finding the Fourth Proportional to 21,984.54, 30,338.66 and 11,913.04

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Solution

The fourth proportional to 21,984.54, 30,338.66 and 11,913.04 is: 16,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.54 : 30,338.66 = 11,913.04 : x
  2. Step 2: Convert to fraction form
    21,984.54/30,338.66 = 11,913.04/x
  3. Step 3: Cross multiply
    21,984.54x = 30,338.66 × 11,913.04
  4. Step 4: Simplify right side
    21,984.54x = 361,425,670.13
  5. Step 5: Solve for x
    x = 361,425,670.13/21,984.54
  6. Step 6: Final answer
    x = 16,439.99

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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.