Home / 22,591.49-31,175.55-12,520.35

Finding the Fourth Proportional to 22,591.49, 31,175.55 and 12,520.35

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Solution

The fourth proportional to 22,591.49, 31,175.55 and 12,520.35 is: 17,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,591.49 : 31,175.55 = 12,520.35 : x
  2. Step 2: Convert to fraction form
    22,591.49/31,175.55 = 12,520.35/x
  3. Step 3: Cross multiply
    22,591.49x = 31,175.55 × 12,520.35
  4. Step 4: Simplify right side
    22,591.49x = 390,328,797.44
  5. Step 5: Solve for x
    x = 390,328,797.44/22,591.49
  6. Step 6: Final answer
    x = 17,277.70

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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.