Home / 28,097.69-38,775.56-15,351.41

Finding the Fourth Proportional to 28,097.69, 38,775.56 and 15,351.41

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Solution

The fourth proportional to 28,097.69, 38,775.56 and 15,351.41 is: 21,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,097.69 : 38,775.56 = 15,351.41 : x
  2. Step 2: Convert to fraction form
    28,097.69/38,775.56 = 15,351.41/x
  3. Step 3: Cross multiply
    28,097.69x = 38,775.56 × 15,351.41
  4. Step 4: Simplify right side
    28,097.69x = 595,259,519.54
  5. Step 5: Solve for x
    x = 595,259,519.54/28,097.69
  6. Step 6: Final answer
    x = 21,185.35

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1.5x scale

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.