Home / 30,360.62-45,556.41-20,479.19

Finding the Fourth Proportional to 30,360.62, 45,556.41 and 20,479.19

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Solution

The fourth proportional to 30,360.62, 45,556.41 and 20,479.19 is: 30,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.62 : 45,556.41 = 20,479.19 : x
  2. Step 2: Convert to fraction form
    30,360.62/45,556.41 = 20,479.19/x
  3. Step 3: Cross multiply
    30,360.62x = 45,556.41 × 20,479.19
  4. Step 4: Simplify right side
    30,360.62x = 932,958,148.33
  5. Step 5: Solve for x
    x = 932,958,148.33/30,360.62
  6. Step 6: Final answer
    x = 30,729.22

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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.