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Finding the Fourth Proportional to 43,044, 64,566 and 13,860

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Solution

The fourth proportional to 43,044, 64,566 and 13,860 is: 20,790

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,044 : 64,566 = 13,860 : x
  2. Step 2: Convert to fraction form
    43,044/64,566 = 13,860/x
  3. Step 3: Cross multiply
    43,044x = 64,566 × 13,860
  4. Step 4: Simplify right side
    43,044x = 894,884,760
  5. Step 5: Solve for x
    x = 894,884,760/43,044
  6. Step 6: Final answer
    x = 20,790

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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.