Home / 22,191.19-30,622.49-12,117.58

Finding the Fourth Proportional to 22,191.19, 30,622.49 and 12,117.58

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Solution

The fourth proportional to 22,191.19, 30,622.49 and 12,117.58 is: 16,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.19 : 30,622.49 = 12,117.58 : x
  2. Step 2: Convert to fraction form
    22,191.19/30,622.49 = 12,117.58/x
  3. Step 3: Cross multiply
    22,191.19x = 30,622.49 × 12,117.58
  4. Step 4: Simplify right side
    22,191.19x = 371,070,518.64
  5. Step 5: Solve for x
    x = 371,070,518.64/22,191.19
  6. Step 6: Final answer
    x = 16,721.52

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Half scale
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Double scale
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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.