Home / 30,982.08-42,754.32-16,834.62

Finding the Fourth Proportional to 30,982.08, 42,754.32 and 16,834.62

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Solution

The fourth proportional to 30,982.08, 42,754.32 and 16,834.62 is: 23,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.08 : 42,754.32 = 16,834.62 : x
  2. Step 2: Convert to fraction form
    30,982.08/42,754.32 = 16,834.62/x
  3. Step 3: Cross multiply
    30,982.08x = 42,754.32 × 16,834.62
  4. Step 4: Simplify right side
    30,982.08x = 719,752,730.56
  5. Step 5: Solve for x
    x = 719,752,730.56/30,982.08
  6. Step 6: Final answer
    x = 23,231.26

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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.