Home / 18,388.19-25,344.85-14,079.80

Finding the Fourth Proportional to 18,388.19, 25,344.85 and 14,079.80

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Solution

The fourth proportional to 18,388.19, 25,344.85 and 14,079.80 is: 19,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.19 : 25,344.85 = 14,079.80 : x
  2. Step 2: Convert to fraction form
    18,388.19/25,344.85 = 14,079.80/x
  3. Step 3: Cross multiply
    18,388.19x = 25,344.85 × 14,079.80
  4. Step 4: Simplify right side
    18,388.19x = 356,850,419.03
  5. Step 5: Solve for x
    x = 356,850,419.03/18,388.19
  6. Step 6: Final answer
    x = 19,406.50

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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.