Home / 30,176.87-45,261.05-7,992.18

Finding the Fourth Proportional to 30,176.87, 45,261.05 and 7,992.18

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Solution

The fourth proportional to 30,176.87, 45,261.05 and 7,992.18 is: 11,987.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,176.87 : 45,261.05 = 7,992.18 : x
  2. Step 2: Convert to fraction form
    30,176.87/45,261.05 = 7,992.18/x
  3. Step 3: Cross multiply
    30,176.87x = 45,261.05 × 7,992.18
  4. Step 4: Simplify right side
    30,176.87x = 361,734,418.63
  5. Step 5: Solve for x
    x = 361,734,418.63/30,176.87
  6. Step 6: Final answer
    x = 11,987.14

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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.