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Finding the Fourth Proportional to 28,737.65, 43,106.43 and 9,017.75

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Solution

The fourth proportional to 28,737.65, 43,106.43 and 9,017.75 is: 13,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.65 : 43,106.43 = 9,017.75 : x
  2. Step 2: Convert to fraction form
    28,737.65/43,106.43 = 9,017.75/x
  3. Step 3: Cross multiply
    28,737.65x = 43,106.43 × 9,017.75
  4. Step 4: Simplify right side
    28,737.65x = 388,722,793.60
  5. Step 5: Solve for x
    x = 388,722,793.60/28,737.65
  6. Step 6: Final answer
    x = 13,526.60

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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.