Home / 42,936.38-64,379.46-19,550.06

Finding the Fourth Proportional to 42,936.38, 64,379.46 and 19,550.06

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Solution

The fourth proportional to 42,936.38, 64,379.46 and 19,550.06 is: 29,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.38 : 64,379.46 = 19,550.06 : x
  2. Step 2: Convert to fraction form
    42,936.38/64,379.46 = 19,550.06/x
  3. Step 3: Cross multiply
    42,936.38x = 64,379.46 × 19,550.06
  4. Step 4: Simplify right side
    42,936.38x = 1,258,622,305.77
  5. Step 5: Solve for x
    x = 1,258,622,305.77/42,936.38
  6. Step 6: Final answer
    x = 29,313.66

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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.