Home / 19,740.47-29,577.29-11,932.88

Finding the Fourth Proportional to 19,740.47, 29,577.29 and 11,932.88

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Solution

The fourth proportional to 19,740.47, 29,577.29 and 11,932.88 is: 17,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.47 : 29,577.29 = 11,932.88 : x
  2. Step 2: Convert to fraction form
    19,740.47/29,577.29 = 11,932.88/x
  3. Step 3: Cross multiply
    19,740.47x = 29,577.29 × 11,932.88
  4. Step 4: Simplify right side
    19,740.47x = 352,942,044.74
  5. Step 5: Solve for x
    x = 352,942,044.74/19,740.47
  6. Step 6: Final answer
    x = 17,879.12

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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.