Home / 42,551.06-63,821.72-11,388.74

Finding the Fourth Proportional to 42,551.06, 63,821.72 and 11,388.74

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Solution

The fourth proportional to 42,551.06, 63,821.72 and 11,388.74 is: 17,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.06 : 63,821.72 = 11,388.74 : x
  2. Step 2: Convert to fraction form
    42,551.06/63,821.72 = 11,388.74/x
  3. Step 3: Cross multiply
    42,551.06x = 63,821.72 × 11,388.74
  4. Step 4: Simplify right side
    42,551.06x = 726,848,599.38
  5. Step 5: Solve for x
    x = 726,848,599.38/42,551.06
  6. Step 6: Final answer
    x = 17,081.80

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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.