Home / 21,097.24-31,629.44-10,561.84

Finding the Fourth Proportional to 21,097.24, 31,629.44 and 10,561.84

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Solution

The fourth proportional to 21,097.24, 31,629.44 and 10,561.84 is: 15,834.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.24 : 31,629.44 = 10,561.84 : x
  2. Step 2: Convert to fraction form
    21,097.24/31,629.44 = 10,561.84/x
  3. Step 3: Cross multiply
    21,097.24x = 31,629.44 × 10,561.84
  4. Step 4: Simplify right side
    21,097.24x = 334,065,016.97
  5. Step 5: Solve for x
    x = 334,065,016.97/21,097.24
  6. Step 6: Final answer
    x = 15,834.54

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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.