Home / 19,689.48-29,534.63-10,979.82

Finding the Fourth Proportional to 19,689.48, 29,534.63 and 10,979.82

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Solution

The fourth proportional to 19,689.48, 29,534.63 and 10,979.82 is: 16,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.48 : 29,534.63 = 10,979.82 : x
  2. Step 2: Convert to fraction form
    19,689.48/29,534.63 = 10,979.82/x
  3. Step 3: Cross multiply
    19,689.48x = 29,534.63 × 10,979.82
  4. Step 4: Simplify right side
    19,689.48x = 324,284,866.27
  5. Step 5: Solve for x
    x = 324,284,866.27/19,689.48
  6. Step 6: Final answer
    x = 16,469.96

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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.