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Finding the Fourth Proportional to 28,928.02, 43,392.02 and 8,151.52

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Solution

The fourth proportional to 28,928.02, 43,392.02 and 8,151.52 is: 12,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.02 : 43,392.02 = 8,151.52 : x
  2. Step 2: Convert to fraction form
    28,928.02/43,392.02 = 8,151.52/x
  3. Step 3: Cross multiply
    28,928.02x = 43,392.02 × 8,151.52
  4. Step 4: Simplify right side
    28,928.02x = 353,710,918.87
  5. Step 5: Solve for x
    x = 353,710,918.87/28,928.02
  6. Step 6: Final answer
    x = 12,227.28

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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.