Home / 21,651.84-29,896.64-14,101.76

Finding the Fourth Proportional to 21,651.84, 29,896.64 and 14,101.76

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Solution

The fourth proportional to 21,651.84, 29,896.64 and 14,101.76 is: 19,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.84 : 29,896.64 = 14,101.76 : x
  2. Step 2: Convert to fraction form
    21,651.84/29,896.64 = 14,101.76/x
  3. Step 3: Cross multiply
    21,651.84x = 29,896.64 × 14,101.76
  4. Step 4: Simplify right side
    21,651.84x = 421,595,242.09
  5. Step 5: Solve for x
    x = 421,595,242.09/21,651.84
  6. Step 6: Final answer
    x = 19,471.57

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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.