Home / 36,130.30-54,181.99-12,431.23

Finding the Fourth Proportional to 36,130.30, 54,181.99 and 12,431.23

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Solution

The fourth proportional to 36,130.30, 54,181.99 and 12,431.23 is: 18,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.30 : 54,181.99 = 12,431.23 : x
  2. Step 2: Convert to fraction form
    36,130.30/54,181.99 = 12,431.23/x
  3. Step 3: Cross multiply
    36,130.30x = 54,181.99 × 12,431.23
  4. Step 4: Simplify right side
    36,130.30x = 673,548,446.48
  5. Step 5: Solve for x
    x = 673,548,446.48/36,130.30
  6. Step 6: Final answer
    x = 18,642.21

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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.