Home / 30,181.80-45,273.55-7,995.18

Finding the Fourth Proportional to 30,181.80, 45,273.55 and 7,995.18

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Solution

The fourth proportional to 30,181.80, 45,273.55 and 7,995.18 is: 11,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,181.80 : 45,273.55 = 7,995.18 : x
  2. Step 2: Convert to fraction form
    30,181.80/45,273.55 = 7,995.18/x
  3. Step 3: Cross multiply
    30,181.80x = 45,273.55 × 7,995.18
  4. Step 4: Simplify right side
    30,181.80x = 361,969,955.12
  5. Step 5: Solve for x
    x = 361,969,955.12/30,181.80
  6. Step 6: Final answer
    x = 11,992.99

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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.