Home / 21,329.19-31,993.79-5,746.82

Finding the Fourth Proportional to 21,329.19, 31,993.79 and 5,746.82

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Solution

The fourth proportional to 21,329.19, 31,993.79 and 5,746.82 is: 8,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.19 : 31,993.79 = 5,746.82 : x
  2. Step 2: Convert to fraction form
    21,329.19/31,993.79 = 5,746.82/x
  3. Step 3: Cross multiply
    21,329.19x = 31,993.79 × 5,746.82
  4. Step 4: Simplify right side
    21,329.19x = 183,862,363.54
  5. Step 5: Solve for x
    x = 183,862,363.54/21,329.19
  6. Step 6: Final answer
    x = 8,620.22

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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.