Home / 33,043.50-45,569.78-21,708.50

Finding the Fourth Proportional to 33,043.50, 45,569.78 and 21,708.50

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Solution

The fourth proportional to 33,043.50, 45,569.78 and 21,708.50 is: 29,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,043.50 : 45,569.78 = 21,708.50 : x
  2. Step 2: Convert to fraction form
    33,043.50/45,569.78 = 21,708.50/x
  3. Step 3: Cross multiply
    33,043.50x = 45,569.78 × 21,708.50
  4. Step 4: Simplify right side
    33,043.50x = 989,251,569.13
  5. Step 5: Solve for x
    x = 989,251,569.13/33,043.50
  6. Step 6: Final answer
    x = 29,937.86

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Why These Related Problems?

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