Home / 35,128.89-48,468.11-20,976.57

Finding the Fourth Proportional to 35,128.89, 48,468.11 and 20,976.57

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Solution

The fourth proportional to 35,128.89, 48,468.11 and 20,976.57 is: 28,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.89 : 48,468.11 = 20,976.57 : x
  2. Step 2: Convert to fraction form
    35,128.89/48,468.11 = 20,976.57/x
  3. Step 3: Cross multiply
    35,128.89x = 48,468.11 × 20,976.57
  4. Step 4: Simplify right side
    35,128.89x = 1,016,694,597.30
  5. Step 5: Solve for x
    x = 1,016,694,597.30/35,128.89
  6. Step 6: Final answer
    x = 28,941.84

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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.