Home / 20,746.90-31,114.77-7,599.34

Finding the Fourth Proportional to 20,746.90, 31,114.77 and 7,599.34

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Solution

The fourth proportional to 20,746.90, 31,114.77 and 7,599.34 is: 11,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.90 : 31,114.77 = 7,599.34 : x
  2. Step 2: Convert to fraction form
    20,746.90/31,114.77 = 7,599.34/x
  3. Step 3: Cross multiply
    20,746.90x = 31,114.77 × 7,599.34
  4. Step 4: Simplify right side
    20,746.90x = 236,451,716.25
  5. Step 5: Solve for x
    x = 236,451,716.25/20,746.90
  6. Step 6: Final answer
    x = 11,396.97

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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.