Home / 21,526.97-29,696.22-13,977.56

Finding the Fourth Proportional to 21,526.97, 29,696.22 and 13,977.56

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Solution

The fourth proportional to 21,526.97, 29,696.22 and 13,977.56 is: 19,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.97 : 29,696.22 = 13,977.56 : x
  2. Step 2: Convert to fraction form
    21,526.97/29,696.22 = 13,977.56/x
  3. Step 3: Cross multiply
    21,526.97x = 29,696.22 × 13,977.56
  4. Step 4: Simplify right side
    21,526.97x = 415,080,696.82
  5. Step 5: Solve for x
    x = 415,080,696.82/21,526.97
  6. Step 6: Final answer
    x = 19,281.89

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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.