Home / 20,344.80-30,518.88-5,553.84

Finding the Fourth Proportional to 20,344.80, 30,518.88 and 5,553.84

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Solution

The fourth proportional to 20,344.80, 30,518.88 and 5,553.84 is: 8,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.80 : 30,518.88 = 5,553.84 : x
  2. Step 2: Convert to fraction form
    20,344.80/30,518.88 = 5,553.84/x
  3. Step 3: Cross multiply
    20,344.80x = 30,518.88 × 5,553.84
  4. Step 4: Simplify right side
    20,344.80x = 169,496,976.50
  5. Step 5: Solve for x
    x = 169,496,976.50/20,344.80
  6. Step 6: Final answer
    x = 8,331.22

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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.