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Finding the Fourth Proportional to 44,005.40, 65,964.90 and 21,822.20

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Solution

The fourth proportional to 44,005.40, 65,964.90 and 21,822.20 is: 32,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,005.40 : 65,964.90 = 21,822.20 : x
  2. Step 2: Convert to fraction form
    44,005.40/65,964.90 = 21,822.20/x
  3. Step 3: Cross multiply
    44,005.40x = 65,964.90 × 21,822.20
  4. Step 4: Simplify right side
    44,005.40x = 1,439,499,240.78
  5. Step 5: Solve for x
    x = 1,439,499,240.78/44,005.40
  6. Step 6: Final answer
    x = 32,711.88

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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.