Home / 35,278.67-48,675.48-21,121.49

Finding the Fourth Proportional to 35,278.67, 48,675.48 and 21,121.49

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Solution

The fourth proportional to 35,278.67, 48,675.48 and 21,121.49 is: 29,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,278.67 : 48,675.48 = 21,121.49 : x
  2. Step 2: Convert to fraction form
    35,278.67/48,675.48 = 21,121.49/x
  3. Step 3: Cross multiply
    35,278.67x = 48,675.48 × 21,121.49
  4. Step 4: Simplify right side
    35,278.67x = 1,028,098,664.07
  5. Step 5: Solve for x
    x = 1,028,098,664.07/35,278.67
  6. Step 6: Final answer
    x = 29,142.22

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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.