Home / 21,964.35-30,310.85-11,892.91

Finding the Fourth Proportional to 21,964.35, 30,310.85 and 11,892.91

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Solution

The fourth proportional to 21,964.35, 30,310.85 and 11,892.91 is: 16,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.35 : 30,310.85 = 11,892.91 : x
  2. Step 2: Convert to fraction form
    21,964.35/30,310.85 = 11,892.91/x
  3. Step 3: Cross multiply
    21,964.35x = 30,310.85 × 11,892.91
  4. Step 4: Simplify right side
    21,964.35x = 360,484,211.07
  5. Step 5: Solve for x
    x = 360,484,211.07/21,964.35
  6. Step 6: Final answer
    x = 16,412.24

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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.