Home / 20,392.58-30,585.22-5,399.80

Finding the Fourth Proportional to 20,392.58, 30,585.22 and 5,399.80

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Solution

The fourth proportional to 20,392.58, 30,585.22 and 5,399.80 is: 8,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.58 : 30,585.22 = 5,399.80 : x
  2. Step 2: Convert to fraction form
    20,392.58/30,585.22 = 5,399.80/x
  3. Step 3: Cross multiply
    20,392.58x = 30,585.22 × 5,399.80
  4. Step 4: Simplify right side
    20,392.58x = 165,153,980.99
  5. Step 5: Solve for x
    x = 165,153,980.99/20,392.58
  6. Step 6: Final answer
    x = 8,098.73

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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.