Home / 19,940.24-29,928.94-10,086.46

Finding the Fourth Proportional to 19,940.24, 29,928.94 and 10,086.46

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Solution

The fourth proportional to 19,940.24, 29,928.94 and 10,086.46 is: 15,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.24 : 29,928.94 = 10,086.46 : x
  2. Step 2: Convert to fraction form
    19,940.24/29,928.94 = 10,086.46/x
  3. Step 3: Cross multiply
    19,940.24x = 29,928.94 × 10,086.46
  4. Step 4: Simplify right side
    19,940.24x = 301,876,956.11
  5. Step 5: Solve for x
    x = 301,876,956.11/19,940.24
  6. Step 6: Final answer
    x = 15,139.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.