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Finding the Fourth Proportional to 43,963.40, 65,945.10 and 12,801.80

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Solution

The fourth proportional to 43,963.40, 65,945.10 and 12,801.80 is: 19,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,963.40 : 65,945.10 = 12,801.80 : x
  2. Step 2: Convert to fraction form
    43,963.40/65,945.10 = 12,801.80/x
  3. Step 3: Cross multiply
    43,963.40x = 65,945.10 × 12,801.80
  4. Step 4: Simplify right side
    43,963.40x = 844,215,981.18
  5. Step 5: Solve for x
    x = 844,215,981.18/43,963.40
  6. Step 6: Final answer
    x = 19,202.70

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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.