Home / 22,087.21-30,481.16-12,657.60

Finding the Fourth Proportional to 22,087.21, 30,481.16 and 12,657.60

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Solution

The fourth proportional to 22,087.21, 30,481.16 and 12,657.60 is: 17,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.21 : 30,481.16 = 12,657.60 : x
  2. Step 2: Convert to fraction form
    22,087.21/30,481.16 = 12,657.60/x
  3. Step 3: Cross multiply
    22,087.21x = 30,481.16 × 12,657.60
  4. Step 4: Simplify right side
    22,087.21x = 385,818,330.82
  5. Step 5: Solve for x
    x = 385,818,330.82/22,087.21
  6. Step 6: Final answer
    x = 17,467.95

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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.