Home / 30,979.62-42,751.26-16,832.57

Finding the Fourth Proportional to 30,979.62, 42,751.26 and 16,832.57

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Solution

The fourth proportional to 30,979.62, 42,751.26 and 16,832.57 is: 23,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.62 : 42,751.26 = 16,832.57 : x
  2. Step 2: Convert to fraction form
    30,979.62/42,751.26 = 16,832.57/x
  3. Step 3: Cross multiply
    30,979.62x = 42,751.26 × 16,832.57
  4. Step 4: Simplify right side
    30,979.62x = 719,613,362.78
  5. Step 5: Solve for x
    x = 719,613,362.78/30,979.62
  6. Step 6: Final answer
    x = 23,228.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.