Home / 22,621.64-31,217.82-12,551.60

Finding the Fourth Proportional to 22,621.64, 31,217.82 and 12,551.60

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Solution

The fourth proportional to 22,621.64, 31,217.82 and 12,551.60 is: 17,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.64 : 31,217.82 = 12,551.60 : x
  2. Step 2: Convert to fraction form
    22,621.64/31,217.82 = 12,551.60/x
  3. Step 3: Cross multiply
    22,621.64x = 31,217.82 × 12,551.60
  4. Step 4: Simplify right side
    22,621.64x = 391,833,589.51
  5. Step 5: Solve for x
    x = 391,833,589.51/22,621.64
  6. Step 6: Final answer
    x = 17,321.18

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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.