Home / 19,672.72-29,471.96-11,643.60

Finding the Fourth Proportional to 19,672.72, 29,471.96 and 11,643.60

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Solution

The fourth proportional to 19,672.72, 29,471.96 and 11,643.60 is: 17,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.72 : 29,471.96 = 11,643.60 : x
  2. Step 2: Convert to fraction form
    19,672.72/29,471.96 = 11,643.60/x
  3. Step 3: Cross multiply
    19,672.72x = 29,471.96 × 11,643.60
  4. Step 4: Simplify right side
    19,672.72x = 343,159,713.46
  5. Step 5: Solve for x
    x = 343,159,713.46/19,672.72
  6. Step 6: Final answer
    x = 17,443.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.