Home / 19,997.38-29,977.39-9,995.96

Finding the Fourth Proportional to 19,997.38, 29,977.39 and 9,995.96

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Solution

The fourth proportional to 19,997.38, 29,977.39 and 9,995.96 is: 14,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.38 : 29,977.39 = 9,995.96 : x
  2. Step 2: Convert to fraction form
    19,997.38/29,977.39 = 9,995.96/x
  3. Step 3: Cross multiply
    19,997.38x = 29,977.39 × 9,995.96
  4. Step 4: Simplify right side
    19,997.38x = 299,652,710.16
  5. Step 5: Solve for x
    x = 299,652,710.16/19,997.38
  6. Step 6: Final answer
    x = 14,984.60

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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.