Home / 20,596.40-28,424.26-11,644.74

Finding the Fourth Proportional to 20,596.40, 28,424.26 and 11,644.74

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Solution

The fourth proportional to 20,596.40, 28,424.26 and 11,644.74 is: 16,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.40 : 28,424.26 = 11,644.74 : x
  2. Step 2: Convert to fraction form
    20,596.40/28,424.26 = 11,644.74/x
  3. Step 3: Cross multiply
    20,596.40x = 28,424.26 × 11,644.74
  4. Step 4: Simplify right side
    20,596.40x = 330,992,917.05
  5. Step 5: Solve for x
    x = 330,992,917.05/20,596.40
  6. Step 6: Final answer
    x = 16,070.43

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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.