Home / 21,329.34-31,991.85-5,748.54

Finding the Fourth Proportional to 21,329.34, 31,991.85 and 5,748.54

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Solution

The fourth proportional to 21,329.34, 31,991.85 and 5,748.54 is: 8,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.34 : 31,991.85 = 5,748.54 : x
  2. Step 2: Convert to fraction form
    21,329.34/31,991.85 = 5,748.54/x
  3. Step 3: Cross multiply
    21,329.34x = 31,991.85 × 5,748.54
  4. Step 4: Simplify right side
    21,329.34x = 183,906,429.40
  5. Step 5: Solve for x
    x = 183,906,429.40/21,329.34
  6. Step 6: Final answer
    x = 8,622.23

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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.