Home / 22,621.06-31,217.07-12,685.06

Finding the Fourth Proportional to 22,621.06, 31,217.07 and 12,685.06

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Solution

The fourth proportional to 22,621.06, 31,217.07 and 12,685.06 is: 17,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.06 : 31,217.07 = 12,685.06 : x
  2. Step 2: Convert to fraction form
    22,621.06/31,217.07 = 12,685.06/x
  3. Step 3: Cross multiply
    22,621.06x = 31,217.07 × 12,685.06
  4. Step 4: Simplify right side
    22,621.06x = 395,990,405.97
  5. Step 5: Solve for x
    x = 395,990,405.97/22,621.06
  6. Step 6: Final answer
    x = 17,505.39

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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.