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Finding the Fourth Proportional to 22,339.33, 30,783.84 and 15,947.89

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Solution

The fourth proportional to 22,339.33, 30,783.84 and 15,947.89 is: 21,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,339.33 : 30,783.84 = 15,947.89 : x
  2. Step 2: Convert to fraction form
    22,339.33/30,783.84 = 15,947.89/x
  3. Step 3: Cross multiply
    22,339.33x = 30,783.84 × 15,947.89
  4. Step 4: Simplify right side
    22,339.33x = 490,937,294.10
  5. Step 5: Solve for x
    x = 490,937,294.10/22,339.33
  6. Step 6: Final answer
    x = 21,976.37

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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.