Home / 20,118.99-30,168.35-6,967.83

Finding the Fourth Proportional to 20,118.99, 30,168.35 and 6,967.83

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Solution

The fourth proportional to 20,118.99, 30,168.35 and 6,967.83 is: 10,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.99 : 30,168.35 = 6,967.83 : x
  2. Step 2: Convert to fraction form
    20,118.99/30,168.35 = 6,967.83/x
  3. Step 3: Cross multiply
    20,118.99x = 30,168.35 × 6,967.83
  4. Step 4: Simplify right side
    20,118.99x = 210,207,934.18
  5. Step 5: Solve for x
    x = 210,207,934.18/20,118.99
  6. Step 6: Final answer
    x = 10,448.23

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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.