Home / 21,377.56-29,500.92-11,946.04

Finding the Fourth Proportional to 21,377.56, 29,500.92 and 11,946.04

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Solution

The fourth proportional to 21,377.56, 29,500.92 and 11,946.04 is: 16,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.56 : 29,500.92 = 11,946.04 : x
  2. Step 2: Convert to fraction form
    21,377.56/29,500.92 = 11,946.04/x
  3. Step 3: Cross multiply
    21,377.56x = 29,500.92 × 11,946.04
  4. Step 4: Simplify right side
    21,377.56x = 352,419,170.36
  5. Step 5: Solve for x
    x = 352,419,170.36/21,377.56
  6. Step 6: Final answer
    x = 16,485.47

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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.