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Finding the Fourth Proportional to 21,957.57, 32,940.95 and 7,167.33

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Solution

The fourth proportional to 21,957.57, 32,940.95 and 7,167.33 is: 10,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.57 : 32,940.95 = 7,167.33 : x
  2. Step 2: Convert to fraction form
    21,957.57/32,940.95 = 7,167.33/x
  3. Step 3: Cross multiply
    21,957.57x = 32,940.95 × 7,167.33
  4. Step 4: Simplify right side
    21,957.57x = 236,098,623.33
  5. Step 5: Solve for x
    x = 236,098,623.33/21,957.57
  6. Step 6: Final answer
    x = 10,752.49

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1.5x scale

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.