Home / 42,983.66-64,481.97-13,403.81

Finding the Fourth Proportional to 42,983.66, 64,481.97 and 13,403.81

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Solution

The fourth proportional to 42,983.66, 64,481.97 and 13,403.81 is: 20,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,983.66 : 64,481.97 = 13,403.81 : x
  2. Step 2: Convert to fraction form
    42,983.66/64,481.97 = 13,403.81/x
  3. Step 3: Cross multiply
    42,983.66x = 64,481.97 × 13,403.81
  4. Step 4: Simplify right side
    42,983.66x = 864,304,285.77
  5. Step 5: Solve for x
    x = 864,304,285.77/42,983.66
  6. Step 6: Final answer
    x = 20,107.74

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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.