Home / 30,040.27-45,062.73-8,978.85

Finding the Fourth Proportional to 30,040.27, 45,062.73 and 8,978.85

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Solution

The fourth proportional to 30,040.27, 45,062.73 and 8,978.85 is: 13,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.27 : 45,062.73 = 8,978.85 : x
  2. Step 2: Convert to fraction form
    30,040.27/45,062.73 = 8,978.85/x
  3. Step 3: Cross multiply
    30,040.27x = 45,062.73 × 8,978.85
  4. Step 4: Simplify right side
    30,040.27x = 404,611,493.26
  5. Step 5: Solve for x
    x = 404,611,493.26/30,040.27
  6. Step 6: Final answer
    x = 13,468.97

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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.