Home / 27,914.92-38,521.20-15,340.12

Finding the Fourth Proportional to 27,914.92, 38,521.20 and 15,340.12

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Solution

The fourth proportional to 27,914.92, 38,521.20 and 15,340.12 is: 21,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,914.92 : 38,521.20 = 15,340.12 : x
  2. Step 2: Convert to fraction form
    27,914.92/38,521.20 = 15,340.12/x
  3. Step 3: Cross multiply
    27,914.92x = 38,521.20 × 15,340.12
  4. Step 4: Simplify right side
    27,914.92x = 590,919,830.54
  5. Step 5: Solve for x
    x = 590,919,830.54/27,914.92
  6. Step 6: Final answer
    x = 21,168.60

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Half scale
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Double scale
Find fourth proportional to 27,915.92, 38,522.58 and 15,341.12
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.