Home / 20,388.60-30,581.42-5,596.25

Finding the Fourth Proportional to 20,388.60, 30,581.42 and 5,596.25

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Solution

The fourth proportional to 20,388.60, 30,581.42 and 5,596.25 is: 8,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.60 : 30,581.42 = 5,596.25 : x
  2. Step 2: Convert to fraction form
    20,388.60/30,581.42 = 5,596.25/x
  3. Step 3: Cross multiply
    20,388.60x = 30,581.42 × 5,596.25
  4. Step 4: Simplify right side
    20,388.60x = 171,141,090.79
  5. Step 5: Solve for x
    x = 171,141,090.79/20,388.60
  6. Step 6: Final answer
    x = 8,393.96

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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.