Home / 30,049.02-45,079.97-8,990.69

Finding the Fourth Proportional to 30,049.02, 45,079.97 and 8,990.69

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Solution

The fourth proportional to 30,049.02, 45,079.97 and 8,990.69 is: 13,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.02 : 45,079.97 = 8,990.69 : x
  2. Step 2: Convert to fraction form
    30,049.02/45,079.97 = 8,990.69/x
  3. Step 3: Cross multiply
    30,049.02x = 45,079.97 × 8,990.69
  4. Step 4: Simplify right side
    30,049.02x = 405,299,765.13
  5. Step 5: Solve for x
    x = 405,299,765.13/30,049.02
  6. Step 6: Final answer
    x = 13,487.95

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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.