Home / 20,712.32-28,582.08-11,759.68

Finding the Fourth Proportional to 20,712.32, 28,582.08 and 11,759.68

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Solution

The fourth proportional to 20,712.32, 28,582.08 and 11,759.68 is: 16,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.32 : 28,582.08 = 11,759.68 : x
  2. Step 2: Convert to fraction form
    20,712.32/28,582.08 = 11,759.68/x
  3. Step 3: Cross multiply
    20,712.32x = 28,582.08 × 11,759.68
  4. Step 4: Simplify right side
    20,712.32x = 336,116,114.53
  5. Step 5: Solve for x
    x = 336,116,114.53/20,712.32
  6. Step 6: Final answer
    x = 16,227.84

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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.