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Finding the Fourth Proportional to 30,388.22, 45,582.06 and 10,662.16

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Solution

The fourth proportional to 30,388.22, 45,582.06 and 10,662.16 is: 15,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.22 : 45,582.06 = 10,662.16 : x
  2. Step 2: Convert to fraction form
    30,388.22/45,582.06 = 10,662.16/x
  3. Step 3: Cross multiply
    30,388.22x = 45,582.06 × 10,662.16
  4. Step 4: Simplify right side
    30,388.22x = 486,003,216.85
  5. Step 5: Solve for x
    x = 486,003,216.85/30,388.22
  6. Step 6: Final answer
    x = 15,993.15

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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.