Home / 30,781.44-46,168.70-8,293.78

Finding the Fourth Proportional to 30,781.44, 46,168.70 and 8,293.78

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Solution

The fourth proportional to 30,781.44, 46,168.70 and 8,293.78 is: 12,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,781.44 : 46,168.70 = 8,293.78 : x
  2. Step 2: Convert to fraction form
    30,781.44/46,168.70 = 8,293.78/x
  3. Step 3: Cross multiply
    30,781.44x = 46,168.70 × 8,293.78
  4. Step 4: Simplify right side
    30,781.44x = 382,913,040.69
  5. Step 5: Solve for x
    x = 382,913,040.69/30,781.44
  6. Step 6: Final answer
    x = 12,439.74

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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.