Home / 36,130.68-54,182.54-12,431.59

Finding the Fourth Proportional to 36,130.68, 54,182.54 and 12,431.59

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Solution

The fourth proportional to 36,130.68, 54,182.54 and 12,431.59 is: 18,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.68 : 54,182.54 = 12,431.59 : x
  2. Step 2: Convert to fraction form
    36,130.68/54,182.54 = 12,431.59/x
  3. Step 3: Cross multiply
    36,130.68x = 54,182.54 × 12,431.59
  4. Step 4: Simplify right side
    36,130.68x = 673,575,122.44
  5. Step 5: Solve for x
    x = 673,575,122.44/36,130.68
  6. Step 6: Final answer
    x = 18,642.75

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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.