Home / 28,157.25-38,858.22-15,582

Finding the Fourth Proportional to 28,157.25, 38,858.22 and 15,582

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Solution

The fourth proportional to 28,157.25, 38,858.22 and 15,582 is: 21,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.25 : 38,858.22 = 15,582 : x
  2. Step 2: Convert to fraction form
    28,157.25/38,858.22 = 15,582/x
  3. Step 3: Cross multiply
    28,157.25x = 38,858.22 × 15,582
  4. Step 4: Simplify right side
    28,157.25x = 605,488,784.04
  5. Step 5: Solve for x
    x = 605,488,784.04/28,157.25
  6. Step 6: Final answer
    x = 21,503.83

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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.