Home / 20,519.94-30,783.96-6,482.13

Finding the Fourth Proportional to 20,519.94, 30,783.96 and 6,482.13

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Solution

The fourth proportional to 20,519.94, 30,783.96 and 6,482.13 is: 9,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.94 : 30,783.96 = 6,482.13 : x
  2. Step 2: Convert to fraction form
    20,519.94/30,783.96 = 6,482.13/x
  3. Step 3: Cross multiply
    20,519.94x = 30,783.96 × 6,482.13
  4. Step 4: Simplify right side
    20,519.94x = 199,545,691.39
  5. Step 5: Solve for x
    x = 199,545,691.39/20,519.94
  6. Step 6: Final answer
    x = 9,724.48

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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.