Home / 19,822.73-29,726.69-7,972.51

Finding the Fourth Proportional to 19,822.73, 29,726.69 and 7,972.51

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Solution

The fourth proportional to 19,822.73, 29,726.69 and 7,972.51 is: 11,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.73 : 29,726.69 = 7,972.51 : x
  2. Step 2: Convert to fraction form
    19,822.73/29,726.69 = 7,972.51/x
  3. Step 3: Cross multiply
    19,822.73x = 29,726.69 × 7,972.51
  4. Step 4: Simplify right side
    19,822.73x = 236,996,278.91
  5. Step 5: Solve for x
    x = 236,996,278.91/19,822.73
  6. Step 6: Final answer
    x = 11,955.78

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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.