Home / 19,899.57-29,849.38-7,419.41

Finding the Fourth Proportional to 19,899.57, 29,849.38 and 7,419.41

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Solution

The fourth proportional to 19,899.57, 29,849.38 and 7,419.41 is: 11,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.57 : 29,849.38 = 7,419.41 : x
  2. Step 2: Convert to fraction form
    19,899.57/29,849.38 = 7,419.41/x
  3. Step 3: Cross multiply
    19,899.57x = 29,849.38 × 7,419.41
  4. Step 4: Simplify right side
    19,899.57x = 221,464,620.67
  5. Step 5: Solve for x
    x = 221,464,620.67/19,899.57
  6. Step 6: Final answer
    x = 11,129.12

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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.