Home / 21,330.54-31,991.49-5,744.52

Finding the Fourth Proportional to 21,330.54, 31,991.49 and 5,744.52

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Solution

The fourth proportional to 21,330.54, 31,991.49 and 5,744.52 is: 8,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.54 : 31,991.49 = 5,744.52 : x
  2. Step 2: Convert to fraction form
    21,330.54/31,991.49 = 5,744.52/x
  3. Step 3: Cross multiply
    21,330.54x = 31,991.49 × 5,744.52
  4. Step 4: Simplify right side
    21,330.54x = 183,775,754.13
  5. Step 5: Solve for x
    x = 183,775,754.13/21,330.54
  6. Step 6: Final answer
    x = 8,615.62

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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.