Home / 20,294.80-30,399.14-13,249.92

Finding the Fourth Proportional to 20,294.80, 30,399.14 and 13,249.92

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Solution

The fourth proportional to 20,294.80, 30,399.14 and 13,249.92 is: 19,846.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.80 : 30,399.14 = 13,249.92 : x
  2. Step 2: Convert to fraction form
    20,294.80/30,399.14 = 13,249.92/x
  3. Step 3: Cross multiply
    20,294.80x = 30,399.14 × 13,249.92
  4. Step 4: Simplify right side
    20,294.80x = 402,786,173.07
  5. Step 5: Solve for x
    x = 402,786,173.07/20,294.80
  6. Step 6: Final answer
    x = 19,846.77

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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.