Home / 21,358.05-29,474.55-11,926.62

Finding the Fourth Proportional to 21,358.05, 29,474.55 and 11,926.62

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Solution

The fourth proportional to 21,358.05, 29,474.55 and 11,926.62 is: 16,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.05 : 29,474.55 = 11,926.62 : x
  2. Step 2: Convert to fraction form
    21,358.05/29,474.55 = 11,926.62/x
  3. Step 3: Cross multiply
    21,358.05x = 29,474.55 × 11,926.62
  4. Step 4: Simplify right side
    21,358.05x = 351,531,757.52
  5. Step 5: Solve for x
    x = 351,531,757.52/21,358.05
  6. Step 6: Final answer
    x = 16,458.98

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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.