Home / 22,176.32-30,603.31-15,115.07

Finding the Fourth Proportional to 22,176.32, 30,603.31 and 15,115.07

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Solution

The fourth proportional to 22,176.32, 30,603.31 and 15,115.07 is: 20,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.32 : 30,603.31 = 15,115.07 : x
  2. Step 2: Convert to fraction form
    22,176.32/30,603.31 = 15,115.07/x
  3. Step 3: Cross multiply
    22,176.32x = 30,603.31 × 15,115.07
  4. Step 4: Simplify right side
    22,176.32x = 462,571,172.88
  5. Step 5: Solve for x
    x = 462,571,172.88/22,176.32
  6. Step 6: Final answer
    x = 20,858.79

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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.