Home / 20,007.80-29,997.30-11,245.40

Finding the Fourth Proportional to 20,007.80, 29,997.30 and 11,245.40

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Solution

The fourth proportional to 20,007.80, 29,997.30 and 11,245.40 is: 16,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.80 : 29,997.30 = 11,245.40 : x
  2. Step 2: Convert to fraction form
    20,007.80/29,997.30 = 11,245.40/x
  3. Step 3: Cross multiply
    20,007.80x = 29,997.30 × 11,245.40
  4. Step 4: Simplify right side
    20,007.80x = 337,331,637.42
  5. Step 5: Solve for x
    x = 337,331,637.42/20,007.80
  6. Step 6: Final answer
    x = 16,860.01

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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.