Home / 19,419.24-29,158-11,108.64

Finding the Fourth Proportional to 19,419.24, 29,158 and 11,108.64

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Solution

The fourth proportional to 19,419.24, 29,158 and 11,108.64 is: 16,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.24 : 29,158 = 11,108.64 : x
  2. Step 2: Convert to fraction form
    19,419.24/29,158 = 11,108.64/x
  3. Step 3: Cross multiply
    19,419.24x = 29,158 × 11,108.64
  4. Step 4: Simplify right side
    19,419.24x = 323,905,725.12
  5. Step 5: Solve for x
    x = 323,905,725.12/19,419.24
  6. Step 6: Final answer
    x = 16,679.63

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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.