Home / 22,017.18-30,378.20-13,064.25

Finding the Fourth Proportional to 22,017.18, 30,378.20 and 13,064.25

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Solution

The fourth proportional to 22,017.18, 30,378.20 and 13,064.25 is: 18,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.18 : 30,378.20 = 13,064.25 : x
  2. Step 2: Convert to fraction form
    22,017.18/30,378.20 = 13,064.25/x
  3. Step 3: Cross multiply
    22,017.18x = 30,378.20 × 13,064.25
  4. Step 4: Simplify right side
    22,017.18x = 396,868,334.03
  5. Step 5: Solve for x
    x = 396,868,334.03/22,017.18
  6. Step 6: Final answer
    x = 18,025.39

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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.