Home / 21,691.44-29,958.78-14,605.56

Finding the Fourth Proportional to 21,691.44, 29,958.78 and 14,605.56

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Solution

The fourth proportional to 21,691.44, 29,958.78 and 14,605.56 is: 20,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691.44 : 29,958.78 = 14,605.56 : x
  2. Step 2: Convert to fraction form
    21,691.44/29,958.78 = 14,605.56/x
  3. Step 3: Cross multiply
    21,691.44x = 29,958.78 × 14,605.56
  4. Step 4: Simplify right side
    21,691.44x = 437,564,758.82
  5. Step 5: Solve for x
    x = 437,564,758.82/21,691.44
  6. Step 6: Final answer
    x = 20,172.23

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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.