Home / 22,116.90-33,175.35-12,785.70

Finding the Fourth Proportional to 22,116.90, 33,175.35 and 12,785.70

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Solution

The fourth proportional to 22,116.90, 33,175.35 and 12,785.70 is: 19,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.90 : 33,175.35 = 12,785.70 : x
  2. Step 2: Convert to fraction form
    22,116.90/33,175.35 = 12,785.70/x
  3. Step 3: Cross multiply
    22,116.90x = 33,175.35 × 12,785.70
  4. Step 4: Simplify right side
    22,116.90x = 424,170,072.50
  5. Step 5: Solve for x
    x = 424,170,072.50/22,116.90
  6. Step 6: Final answer
    x = 19,178.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.