Home / 20,924.03-31,389.42-6,879.98

Finding the Fourth Proportional to 20,924.03, 31,389.42 and 6,879.98

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Solution

The fourth proportional to 20,924.03, 31,389.42 and 6,879.98 is: 10,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.03 : 31,389.42 = 6,879.98 : x
  2. Step 2: Convert to fraction form
    20,924.03/31,389.42 = 6,879.98/x
  3. Step 3: Cross multiply
    20,924.03x = 31,389.42 × 6,879.98
  4. Step 4: Simplify right side
    20,924.03x = 215,958,581.81
  5. Step 5: Solve for x
    x = 215,958,581.81/20,924.03
  6. Step 6: Final answer
    x = 10,321.08

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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.