Home / 30,295.23-45,442.18-8,108.61

Finding the Fourth Proportional to 30,295.23, 45,442.18 and 8,108.61

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Solution

The fourth proportional to 30,295.23, 45,442.18 and 8,108.61 is: 12,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.23 : 45,442.18 = 8,108.61 : x
  2. Step 2: Convert to fraction form
    30,295.23/45,442.18 = 8,108.61/x
  3. Step 3: Cross multiply
    30,295.23x = 45,442.18 × 8,108.61
  4. Step 4: Simplify right side
    30,295.23x = 368,472,754.90
  5. Step 5: Solve for x
    x = 368,472,754.90/30,295.23
  6. Step 6: Final answer
    x = 12,162.73

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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.