Home / 19,689.05-29,464.20-12,296.99

Finding the Fourth Proportional to 19,689.05, 29,464.20 and 12,296.99

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Solution

The fourth proportional to 19,689.05, 29,464.20 and 12,296.99 is: 18,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.05 : 29,464.20 = 12,296.99 : x
  2. Step 2: Convert to fraction form
    19,689.05/29,464.20 = 12,296.99/x
  3. Step 3: Cross multiply
    19,689.05x = 29,464.20 × 12,296.99
  4. Step 4: Simplify right side
    19,689.05x = 362,320,825.44
  5. Step 5: Solve for x
    x = 362,320,825.44/19,689.05
  6. Step 6: Final answer
    x = 18,402.15

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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.