Home / 20,739.60-31,104.76-5,948.44

Finding the Fourth Proportional to 20,739.60, 31,104.76 and 5,948.44

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Solution

The fourth proportional to 20,739.60, 31,104.76 and 5,948.44 is: 8,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.60 : 31,104.76 = 5,948.44 : x
  2. Step 2: Convert to fraction form
    20,739.60/31,104.76 = 5,948.44/x
  3. Step 3: Cross multiply
    20,739.60x = 31,104.76 × 5,948.44
  4. Step 4: Simplify right side
    20,739.60x = 185,024,798.57
  5. Step 5: Solve for x
    x = 185,024,798.57/20,739.60
  6. Step 6: Final answer
    x = 8,921.33

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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.