Home / 30,361.62-45,557.91-20,480.19

Finding the Fourth Proportional to 30,361.62, 45,557.91 and 20,480.19

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Solution

The fourth proportional to 30,361.62, 45,557.91 and 20,480.19 is: 30,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.62 : 45,557.91 = 20,480.19 : x
  2. Step 2: Convert to fraction form
    30,361.62/45,557.91 = 20,480.19/x
  3. Step 3: Cross multiply
    30,361.62x = 45,557.91 × 20,480.19
  4. Step 4: Simplify right side
    30,361.62x = 933,034,652.80
  5. Step 5: Solve for x
    x = 933,034,652.80/30,361.62
  6. Step 6: Final answer
    x = 30,730.73

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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.