Home / 20,212.49-30,323.18-5,979.86

Finding the Fourth Proportional to 20,212.49, 30,323.18 and 5,979.86

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Solution

The fourth proportional to 20,212.49, 30,323.18 and 5,979.86 is: 8,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.49 : 30,323.18 = 5,979.86 : x
  2. Step 2: Convert to fraction form
    20,212.49/30,323.18 = 5,979.86/x
  3. Step 3: Cross multiply
    20,212.49x = 30,323.18 × 5,979.86
  4. Step 4: Simplify right side
    20,212.49x = 181,328,189.64
  5. Step 5: Solve for x
    x = 181,328,189.64/20,212.49
  6. Step 6: Final answer
    x = 8,971.10

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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.