Home / 20,599.76-28,441.32-12,218.96

Finding the Fourth Proportional to 20,599.76, 28,441.32 and 12,218.96

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Solution

The fourth proportional to 20,599.76, 28,441.32 and 12,218.96 is: 16,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.76 : 28,441.32 = 12,218.96 : x
  2. Step 2: Convert to fraction form
    20,599.76/28,441.32 = 12,218.96/x
  3. Step 3: Cross multiply
    20,599.76x = 28,441.32 × 12,218.96
  4. Step 4: Simplify right side
    20,599.76x = 347,523,351.43
  5. Step 5: Solve for x
    x = 347,523,351.43/20,599.76
  6. Step 6: Final answer
    x = 16,870.26

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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.