Home / 21,471.03-29,630.00-11,912.37

Finding the Fourth Proportional to 21,471.03, 29,630.00 and 11,912.37

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Solution

The fourth proportional to 21,471.03, 29,630.00 and 11,912.37 is: 16,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471.03 : 29,630.00 = 11,912.37 : x
  2. Step 2: Convert to fraction form
    21,471.03/29,630.00 = 11,912.37/x
  3. Step 3: Cross multiply
    21,471.03x = 29,630.00 × 11,912.37
  4. Step 4: Simplify right side
    21,471.03x = 352,963,463.54
  5. Step 5: Solve for x
    x = 352,963,463.54/21,471.03
  6. Step 6: Final answer
    x = 16,439.06

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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.