Home / 20,596.56-28,422.14-11,643.54

Finding the Fourth Proportional to 20,596.56, 28,422.14 and 11,643.54

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Solution

The fourth proportional to 20,596.56, 28,422.14 and 11,643.54 is: 16,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.56 : 28,422.14 = 11,643.54 : x
  2. Step 2: Convert to fraction form
    20,596.56/28,422.14 = 11,643.54/x
  3. Step 3: Cross multiply
    20,596.56x = 28,422.14 × 11,643.54
  4. Step 4: Simplify right side
    20,596.56x = 330,934,265.76
  5. Step 5: Solve for x
    x = 330,934,265.76/20,596.56
  6. Step 6: Final answer
    x = 16,067.45

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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.