Home / 20,843.58-28,759.50-12,341.46

Finding the Fourth Proportional to 20,843.58, 28,759.50 and 12,341.46

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Solution

The fourth proportional to 20,843.58, 28,759.50 and 12,341.46 is: 17,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.58 : 28,759.50 = 12,341.46 : x
  2. Step 2: Convert to fraction form
    20,843.58/28,759.50 = 12,341.46/x
  3. Step 3: Cross multiply
    20,843.58x = 28,759.50 × 12,341.46
  4. Step 4: Simplify right side
    20,843.58x = 354,934,218.87
  5. Step 5: Solve for x
    x = 354,934,218.87/20,843.58
  6. Step 6: Final answer
    x = 17,028.47

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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.