Home / 19,972.86-29,949.68-11,655.32

Finding the Fourth Proportional to 19,972.86, 29,949.68 and 11,655.32

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Solution

The fourth proportional to 19,972.86, 29,949.68 and 11,655.32 is: 17,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.86 : 29,949.68 = 11,655.32 : x
  2. Step 2: Convert to fraction form
    19,972.86/29,949.68 = 11,655.32/x
  3. Step 3: Cross multiply
    19,972.86x = 29,949.68 × 11,655.32
  4. Step 4: Simplify right side
    19,972.86x = 349,073,104.30
  5. Step 5: Solve for x
    x = 349,073,104.30/19,972.86
  6. Step 6: Final answer
    x = 17,477.37

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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.