Home / 20,380.32-28,141.44-16,604.04

Finding the Fourth Proportional to 20,380.32, 28,141.44 and 16,604.04

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Solution

The fourth proportional to 20,380.32, 28,141.44 and 16,604.04 is: 22,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.32 : 28,141.44 = 16,604.04 : x
  2. Step 2: Convert to fraction form
    20,380.32/28,141.44 = 16,604.04/x
  3. Step 3: Cross multiply
    20,380.32x = 28,141.44 × 16,604.04
  4. Step 4: Simplify right side
    20,380.32x = 467,261,595.42
  5. Step 5: Solve for x
    x = 467,261,595.42/20,380.32
  6. Step 6: Final answer
    x = 22,927.10

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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.