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Finding the Fourth Proportional to 28,737.11, 43,100.76 and 7,955.75

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Solution

The fourth proportional to 28,737.11, 43,100.76 and 7,955.75 is: 11,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.11 : 43,100.76 = 7,955.75 : x
  2. Step 2: Convert to fraction form
    28,737.11/43,100.76 = 7,955.75/x
  3. Step 3: Cross multiply
    28,737.11x = 43,100.76 × 7,955.75
  4. Step 4: Simplify right side
    28,737.11x = 342,898,871.37
  5. Step 5: Solve for x
    x = 342,898,871.37/28,737.11
  6. Step 6: Final answer
    x = 11,932.27

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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.