Home / 20,388.65-30,579.32-5,595.62

Finding the Fourth Proportional to 20,388.65, 30,579.32 and 5,595.62

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Solution

The fourth proportional to 20,388.65, 30,579.32 and 5,595.62 is: 8,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.65 : 30,579.32 = 5,595.62 : x
  2. Step 2: Convert to fraction form
    20,388.65/30,579.32 = 5,595.62/x
  3. Step 3: Cross multiply
    20,388.65x = 30,579.32 × 5,595.62
  4. Step 4: Simplify right side
    20,388.65x = 171,110,115.67
  5. Step 5: Solve for x
    x = 171,110,115.67/20,388.65
  6. Step 6: Final answer
    x = 8,392.42

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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.