Home / 20,318.13-30,468.51-6,992.46

Finding the Fourth Proportional to 20,318.13, 30,468.51 and 6,992.46

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Solution

The fourth proportional to 20,318.13, 30,468.51 and 6,992.46 is: 10,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.13 : 30,468.51 = 6,992.46 : x
  2. Step 2: Convert to fraction form
    20,318.13/30,468.51 = 6,992.46/x
  3. Step 3: Cross multiply
    20,318.13x = 30,468.51 × 6,992.46
  4. Step 4: Simplify right side
    20,318.13x = 213,049,837.43
  5. Step 5: Solve for x
    x = 213,049,837.43/20,318.13
  6. Step 6: Final answer
    x = 10,485.70

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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.