Home / 19,419.44-28,997.53-15,425.87

Finding the Fourth Proportional to 19,419.44, 28,997.53 and 15,425.87

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Solution

The fourth proportional to 19,419.44, 28,997.53 and 15,425.87 is: 23,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.44 : 28,997.53 = 15,425.87 : x
  2. Step 2: Convert to fraction form
    19,419.44/28,997.53 = 15,425.87/x
  3. Step 3: Cross multiply
    19,419.44x = 28,997.53 × 15,425.87
  4. Step 4: Simplify right side
    19,419.44x = 447,312,128.10
  5. Step 5: Solve for x
    x = 447,312,128.10/19,419.44
  6. Step 6: Final answer
    x = 23,034.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.