Home / 30,215.09-41,697.18-16,787.22

Finding the Fourth Proportional to 30,215.09, 41,697.18 and 16,787.22

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Solution

The fourth proportional to 30,215.09, 41,697.18 and 16,787.22 is: 23,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.09 : 41,697.18 = 16,787.22 : x
  2. Step 2: Convert to fraction form
    30,215.09/41,697.18 = 16,787.22/x
  3. Step 3: Cross multiply
    30,215.09x = 41,697.18 × 16,787.22
  4. Step 4: Simplify right side
    30,215.09x = 699,979,577.68
  5. Step 5: Solve for x
    x = 699,979,577.68/30,215.09
  6. Step 6: Final answer
    x = 23,166.55

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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.