Home / 30,136.10-45,193.66-12,361.64

Finding the Fourth Proportional to 30,136.10, 45,193.66 and 12,361.64

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Solution

The fourth proportional to 30,136.10, 45,193.66 and 12,361.64 is: 18,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,136.10 : 45,193.66 = 12,361.64 : x
  2. Step 2: Convert to fraction form
    30,136.10/45,193.66 = 12,361.64/x
  3. Step 3: Cross multiply
    30,136.10x = 45,193.66 × 12,361.64
  4. Step 4: Simplify right side
    30,136.10x = 558,667,755.20
  5. Step 5: Solve for x
    x = 558,667,755.20/30,136.10
  6. Step 6: Final answer
    x = 18,538.16

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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.