Home / 20,966.03-28,933.84-12,015.26

Finding the Fourth Proportional to 20,966.03, 28,933.84 and 12,015.26

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Solution

The fourth proportional to 20,966.03, 28,933.84 and 12,015.26 is: 16,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.03 : 28,933.84 = 12,015.26 : x
  2. Step 2: Convert to fraction form
    20,966.03/28,933.84 = 12,015.26/x
  3. Step 3: Cross multiply
    20,966.03x = 28,933.84 × 12,015.26
  4. Step 4: Simplify right side
    20,966.03x = 347,647,550.32
  5. Step 5: Solve for x
    x = 347,647,550.32/20,966.03
  6. Step 6: Final answer
    x = 16,581.47

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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.