Home / 19,961.98-29,937.86-5,918.72

Finding the Fourth Proportional to 19,961.98, 29,937.86 and 5,918.72

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Solution

The fourth proportional to 19,961.98, 29,937.86 and 5,918.72 is: 8,876.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.98 : 29,937.86 = 5,918.72 : x
  2. Step 2: Convert to fraction form
    19,961.98/29,937.86 = 5,918.72/x
  3. Step 3: Cross multiply
    19,961.98x = 29,937.86 × 5,918.72
  4. Step 4: Simplify right side
    19,961.98x = 177,193,810.74
  5. Step 5: Solve for x
    x = 177,193,810.74/19,961.98
  6. Step 6: Final answer
    x = 8,876.56

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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.