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Finding the Fourth Proportional to 43,501, 65,251.52 and 18,877

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Solution

The fourth proportional to 43,501, 65,251.52 and 18,877 is: 28,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,501 : 65,251.52 = 18,877 : x
  2. Step 2: Convert to fraction form
    43,501/65,251.52 = 18,877/x
  3. Step 3: Cross multiply
    43,501x = 65,251.52 × 18,877
  4. Step 4: Simplify right side
    43,501x = 1,231,752,943.04
  5. Step 5: Solve for x
    x = 1,231,752,943.04/43,501
  6. Step 6: Final answer
    x = 28,315.51

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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.