Home / 20,368.94-30,553.16-5,577.85

Finding the Fourth Proportional to 20,368.94, 30,553.16 and 5,577.85

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Solution

The fourth proportional to 20,368.94, 30,553.16 and 5,577.85 is: 8,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.94 : 30,553.16 = 5,577.85 : x
  2. Step 2: Convert to fraction form
    20,368.94/30,553.16 = 5,577.85/x
  3. Step 3: Cross multiply
    20,368.94x = 30,553.16 × 5,577.85
  4. Step 4: Simplify right side
    20,368.94x = 170,420,790.74
  5. Step 5: Solve for x
    x = 170,420,790.74/20,368.94
  6. Step 6: Final answer
    x = 8,366.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.