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Finding the Fourth Proportional to 21,957.32, 32,935.86 and 8,800.28

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Solution

The fourth proportional to 21,957.32, 32,935.86 and 8,800.28 is: 13,200.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.32 : 32,935.86 = 8,800.28 : x
  2. Step 2: Convert to fraction form
    21,957.32/32,935.86 = 8,800.28/x
  3. Step 3: Cross multiply
    21,957.32x = 32,935.86 × 8,800.28
  4. Step 4: Simplify right side
    21,957.32x = 289,844,790.04
  5. Step 5: Solve for x
    x = 289,844,790.04/21,957.32
  6. Step 6: Final answer
    x = 13,200.37

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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.