Home / 20,659.44-28,514.56-13,586.52

Finding the Fourth Proportional to 20,659.44, 28,514.56 and 13,586.52

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Solution

The fourth proportional to 20,659.44, 28,514.56 and 13,586.52 is: 18,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.44 : 28,514.56 = 13,586.52 : x
  2. Step 2: Convert to fraction form
    20,659.44/28,514.56 = 13,586.52/x
  3. Step 3: Cross multiply
    20,659.44x = 28,514.56 × 13,586.52
  4. Step 4: Simplify right side
    20,659.44x = 387,413,639.73
  5. Step 5: Solve for x
    x = 387,413,639.73/20,659.44
  6. Step 6: Final answer
    x = 18,752.38

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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.