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Finding the Fourth Proportional to 43,807.75, 65,758.41 and 18,860.17

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Solution

The fourth proportional to 43,807.75, 65,758.41 and 18,860.17 is: 28,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.75 : 65,758.41 = 18,860.17 : x
  2. Step 2: Convert to fraction form
    43,807.75/65,758.41 = 18,860.17/x
  3. Step 3: Cross multiply
    43,807.75x = 65,758.41 × 18,860.17
  4. Step 4: Simplify right side
    43,807.75x = 1,240,214,791.53
  5. Step 5: Solve for x
    x = 1,240,214,791.53/43,807.75
  6. Step 6: Final answer
    x = 28,310.40

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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.