Home / 19,997.22-29,985.77-6,665.49

Finding the Fourth Proportional to 19,997.22, 29,985.77 and 6,665.49

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Solution

The fourth proportional to 19,997.22, 29,985.77 and 6,665.49 is: 9,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.22 : 29,985.77 = 6,665.49 : x
  2. Step 2: Convert to fraction form
    19,997.22/29,985.77 = 6,665.49/x
  3. Step 3: Cross multiply
    19,997.22x = 29,985.77 × 6,665.49
  4. Step 4: Simplify right side
    19,997.22x = 199,869,816.75
  5. Step 5: Solve for x
    x = 199,869,816.75/19,997.22
  6. Step 6: Final answer
    x = 9,994.88

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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.