Home / 42,550.81-63,821.34-11,388.49

Finding the Fourth Proportional to 42,550.81, 63,821.34 and 11,388.49

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Solution

The fourth proportional to 42,550.81, 63,821.34 and 11,388.49 is: 17,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.81 : 63,821.34 = 11,388.49 : x
  2. Step 2: Convert to fraction form
    42,550.81/63,821.34 = 11,388.49/x
  3. Step 3: Cross multiply
    42,550.81x = 63,821.34 × 11,388.49
  4. Step 4: Simplify right side
    42,550.81x = 726,828,692.38
  5. Step 5: Solve for x
    x = 726,828,692.38/42,550.81
  6. Step 6: Final answer
    x = 17,081.43

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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.