Home / 21,957.20-32,924.60-7,156.61

Finding the Fourth Proportional to 21,957.20, 32,924.60 and 7,156.61

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Solution

The fourth proportional to 21,957.20, 32,924.60 and 7,156.61 is: 10,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.20 : 32,924.60 = 7,156.61 : x
  2. Step 2: Convert to fraction form
    21,957.20/32,924.60 = 7,156.61/x
  3. Step 3: Cross multiply
    21,957.20x = 32,924.60 × 7,156.61
  4. Step 4: Simplify right side
    21,957.20x = 235,628,485.82
  5. Step 5: Solve for x
    x = 235,628,485.82/21,957.20
  6. Step 6: Final answer
    x = 10,731.26

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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.