Home / 35,121.47-48,454.09-21,669.40

Finding the Fourth Proportional to 35,121.47, 48,454.09 and 21,669.40

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Solution

The fourth proportional to 35,121.47, 48,454.09 and 21,669.40 is: 29,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,121.47 : 48,454.09 = 21,669.40 : x
  2. Step 2: Convert to fraction form
    35,121.47/48,454.09 = 21,669.40/x
  3. Step 3: Cross multiply
    35,121.47x = 48,454.09 × 21,669.40
  4. Step 4: Simplify right side
    35,121.47x = 1,049,970,882.54
  5. Step 5: Solve for x
    x = 1,049,970,882.54/35,121.47
  6. Step 6: Final answer
    x = 29,895.41

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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.