Home / 20,493.24-28,278.60-11,540.52

Finding the Fourth Proportional to 20,493.24, 28,278.60 and 11,540.52

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Solution

The fourth proportional to 20,493.24, 28,278.60 and 11,540.52 is: 15,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.24 : 28,278.60 = 11,540.52 : x
  2. Step 2: Convert to fraction form
    20,493.24/28,278.60 = 11,540.52/x
  3. Step 3: Cross multiply
    20,493.24x = 28,278.60 × 11,540.52
  4. Step 4: Simplify right side
    20,493.24x = 326,349,748.87
  5. Step 5: Solve for x
    x = 326,349,748.87/20,493.24
  6. Step 6: Final answer
    x = 15,924.75

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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.