Home / 19,777.88-29,666.77-4,987.96

Finding the Fourth Proportional to 19,777.88, 29,666.77 and 4,987.96

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Solution

The fourth proportional to 19,777.88, 29,666.77 and 4,987.96 is: 7,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.88 : 29,666.77 = 4,987.96 : x
  2. Step 2: Convert to fraction form
    19,777.88/29,666.77 = 4,987.96/x
  3. Step 3: Cross multiply
    19,777.88x = 29,666.77 × 4,987.96
  4. Step 4: Simplify right side
    19,777.88x = 147,976,662.09
  5. Step 5: Solve for x
    x = 147,976,662.09/19,777.88
  6. Step 6: Final answer
    x = 7,481.93

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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.