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Finding the Fourth Proportional to 21,963.70, 32,933.40 and 8,801.20

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Solution

The fourth proportional to 21,963.70, 32,933.40 and 8,801.20 is: 13,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.70 : 32,933.40 = 8,801.20 : x
  2. Step 2: Convert to fraction form
    21,963.70/32,933.40 = 8,801.20/x
  3. Step 3: Cross multiply
    21,963.70x = 32,933.40 × 8,801.20
  4. Step 4: Simplify right side
    21,963.70x = 289,853,440.08
  5. Step 5: Solve for x
    x = 289,853,440.08/21,963.70
  6. Step 6: Final answer
    x = 13,196.93

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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.