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Finding the Fourth Proportional to 43,985, 65,987.22 and 16,283

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Solution

The fourth proportional to 43,985, 65,987.22 and 16,283 is: 24,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,985 : 65,987.22 = 16,283 : x
  2. Step 2: Convert to fraction form
    43,985/65,987.22 = 16,283/x
  3. Step 3: Cross multiply
    43,985x = 65,987.22 × 16,283
  4. Step 4: Simplify right side
    43,985x = 1,074,469,903.26
  5. Step 5: Solve for x
    x = 1,074,469,903.26/43,985
  6. Step 6: Final answer
    x = 24,428.10

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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.