Home / 20,386.60-30,579.90-17,794.60

Finding the Fourth Proportional to 20,386.60, 30,579.90 and 17,794.60

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Solution

The fourth proportional to 20,386.60, 30,579.90 and 17,794.60 is: 26,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.60 : 30,579.90 = 17,794.60 : x
  2. Step 2: Convert to fraction form
    20,386.60/30,579.90 = 17,794.60/x
  3. Step 3: Cross multiply
    20,386.60x = 30,579.90 × 17,794.60
  4. Step 4: Simplify right side
    20,386.60x = 544,157,088.54
  5. Step 5: Solve for x
    x = 544,157,088.54/20,386.60
  6. Step 6: Final answer
    x = 26,691.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.