Home / 28,860.62-43,293.39-10,139.03

Finding the Fourth Proportional to 28,860.62, 43,293.39 and 10,139.03

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Solution

The fourth proportional to 28,860.62, 43,293.39 and 10,139.03 is: 15,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.62 : 43,293.39 = 10,139.03 : x
  2. Step 2: Convert to fraction form
    28,860.62/43,293.39 = 10,139.03/x
  3. Step 3: Cross multiply
    28,860.62x = 43,293.39 × 10,139.03
  4. Step 4: Simplify right side
    28,860.62x = 438,952,763.54
  5. Step 5: Solve for x
    x = 438,952,763.54/28,860.62
  6. Step 6: Final answer
    x = 15,209.40

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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.