Home / 31,553.45-43,539.28-19,612.43

Finding the Fourth Proportional to 31,553.45, 43,539.28 and 19,612.43

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Solution

The fourth proportional to 31,553.45, 43,539.28 and 19,612.43 is: 27,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.45 : 43,539.28 = 19,612.43 : x
  2. Step 2: Convert to fraction form
    31,553.45/43,539.28 = 19,612.43/x
  3. Step 3: Cross multiply
    31,553.45x = 43,539.28 × 19,612.43
  4. Step 4: Simplify right side
    31,553.45x = 853,911,081.25
  5. Step 5: Solve for x
    x = 853,911,081.25/31,553.45
  6. Step 6: Final answer
    x = 27,062.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.