Home / 21,964.18-30,310.57-11,892.62

Finding the Fourth Proportional to 21,964.18, 30,310.57 and 11,892.62

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Solution

The fourth proportional to 21,964.18, 30,310.57 and 11,892.62 is: 16,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.18 : 30,310.57 = 11,892.62 : x
  2. Step 2: Convert to fraction form
    21,964.18/30,310.57 = 11,892.62/x
  3. Step 3: Cross multiply
    21,964.18x = 30,310.57 × 11,892.62
  4. Step 4: Simplify right side
    21,964.18x = 360,472,031.53
  5. Step 5: Solve for x
    x = 360,472,031.53/21,964.18
  6. Step 6: Final answer
    x = 16,411.81

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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.