Home / 20,759.04-28,651.14-12,260.58

Finding the Fourth Proportional to 20,759.04, 28,651.14 and 12,260.58

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Solution

The fourth proportional to 20,759.04, 28,651.14 and 12,260.58 is: 16,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.04 : 28,651.14 = 12,260.58 : x
  2. Step 2: Convert to fraction form
    20,759.04/28,651.14 = 12,260.58/x
  3. Step 3: Cross multiply
    20,759.04x = 28,651.14 × 12,260.58
  4. Step 4: Simplify right side
    20,759.04x = 351,279,594.06
  5. Step 5: Solve for x
    x = 351,279,594.06/20,759.04
  6. Step 6: Final answer
    x = 16,921.76

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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.