Home / 19,414.19-29,135.75-14,428.05

Finding the Fourth Proportional to 19,414.19, 29,135.75 and 14,428.05

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Solution

The fourth proportional to 19,414.19, 29,135.75 and 14,428.05 is: 21,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,414.19 : 29,135.75 = 14,428.05 : x
  2. Step 2: Convert to fraction form
    19,414.19/29,135.75 = 14,428.05/x
  3. Step 3: Cross multiply
    19,414.19x = 29,135.75 × 14,428.05
  4. Step 4: Simplify right side
    19,414.19x = 420,371,985.65
  5. Step 5: Solve for x
    x = 420,371,985.65/19,414.19
  6. Step 6: Final answer
    x = 21,652.83

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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.