Home / 19,326.10-28,996.06-11,921.94

Finding the Fourth Proportional to 19,326.10, 28,996.06 and 11,921.94

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Solution

The fourth proportional to 19,326.10, 28,996.06 and 11,921.94 is: 17,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.10 : 28,996.06 = 11,921.94 : x
  2. Step 2: Convert to fraction form
    19,326.10/28,996.06 = 11,921.94/x
  3. Step 3: Cross multiply
    19,326.10x = 28,996.06 × 11,921.94
  4. Step 4: Simplify right side
    19,326.10x = 345,689,280.11
  5. Step 5: Solve for x
    x = 345,689,280.11/19,326.10
  6. Step 6: Final answer
    x = 17,887.17

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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.