Home / 22,017.11-30,383.55-12,585.66

Finding the Fourth Proportional to 22,017.11, 30,383.55 and 12,585.66

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Solution

The fourth proportional to 22,017.11, 30,383.55 and 12,585.66 is: 17,368.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.11 : 30,383.55 = 12,585.66 : x
  2. Step 2: Convert to fraction form
    22,017.11/30,383.55 = 12,585.66/x
  3. Step 3: Cross multiply
    22,017.11x = 30,383.55 × 12,585.66
  4. Step 4: Simplify right side
    22,017.11x = 382,397,029.89
  5. Step 5: Solve for x
    x = 382,397,029.89/22,017.11
  6. Step 6: Final answer
    x = 17,368.18

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Half scale
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Double scale
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Similar ratio
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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.