Home / 30,293.13-45,436.11-8,108.25

Finding the Fourth Proportional to 30,293.13, 45,436.11 and 8,108.25

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Solution

The fourth proportional to 30,293.13, 45,436.11 and 8,108.25 is: 12,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,293.13 : 45,436.11 = 8,108.25 : x
  2. Step 2: Convert to fraction form
    30,293.13/45,436.11 = 8,108.25/x
  3. Step 3: Cross multiply
    30,293.13x = 45,436.11 × 8,108.25
  4. Step 4: Simplify right side
    30,293.13x = 368,407,338.91
  5. Step 5: Solve for x
    x = 368,407,338.91/30,293.13
  6. Step 6: Final answer
    x = 12,161.42

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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.