Home / 30,293.36-45,436.78-8,108.97

Finding the Fourth Proportional to 30,293.36, 45,436.78 and 8,108.97

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Solution

The fourth proportional to 30,293.36, 45,436.78 and 8,108.97 is: 12,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,293.36 : 45,436.78 = 8,108.97 : x
  2. Step 2: Convert to fraction form
    30,293.36/45,436.78 = 8,108.97/x
  3. Step 3: Cross multiply
    30,293.36x = 45,436.78 × 8,108.97
  4. Step 4: Simplify right side
    30,293.36x = 368,445,485.92
  5. Step 5: Solve for x
    x = 368,445,485.92/30,293.36
  6. Step 6: Final answer
    x = 12,162.58

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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.