Home / 15,027.12-20,743.24-13,452.48

Finding the Fourth Proportional to 15,027.12, 20,743.24 and 13,452.48

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Solution

The fourth proportional to 15,027.12, 20,743.24 and 13,452.48 is: 18,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027.12 : 20,743.24 = 13,452.48 : x
  2. Step 2: Convert to fraction form
    15,027.12/20,743.24 = 13,452.48/x
  3. Step 3: Cross multiply
    15,027.12x = 20,743.24 × 13,452.48
  4. Step 4: Simplify right side
    15,027.12x = 279,048,021.24
  5. Step 5: Solve for x
    x = 279,048,021.24/15,027.12
  6. Step 6: Final answer
    x = 18,569.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.