Home / 30,165.66-45,202.32-12,625.92

Finding the Fourth Proportional to 30,165.66, 45,202.32 and 12,625.92

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Solution

The fourth proportional to 30,165.66, 45,202.32 and 12,625.92 is: 18,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,165.66 : 45,202.32 = 12,625.92 : x
  2. Step 2: Convert to fraction form
    30,165.66/45,202.32 = 12,625.92/x
  3. Step 3: Cross multiply
    30,165.66x = 45,202.32 × 12,625.92
  4. Step 4: Simplify right side
    30,165.66x = 570,720,876.13
  5. Step 5: Solve for x
    x = 570,720,876.13/30,165.66
  6. Step 6: Final answer
    x = 18,919.56

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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.