Home / 30,215.39-41,697.96-16,787.21

Finding the Fourth Proportional to 30,215.39, 41,697.96 and 16,787.21

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Solution

The fourth proportional to 30,215.39, 41,697.96 and 16,787.21 is: 23,166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.39 : 41,697.96 = 16,787.21 : x
  2. Step 2: Convert to fraction form
    30,215.39/41,697.96 = 16,787.21/x
  3. Step 3: Cross multiply
    30,215.39x = 41,697.96 × 16,787.21
  4. Step 4: Simplify right side
    30,215.39x = 699,992,411.09
  5. Step 5: Solve for x
    x = 699,992,411.09/30,215.39
  6. Step 6: Final answer
    x = 23,166.75

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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.