Home / 20,745.48-31,114.50-7,598.04

Finding the Fourth Proportional to 20,745.48, 31,114.50 and 7,598.04

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Solution

The fourth proportional to 20,745.48, 31,114.50 and 7,598.04 is: 11,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.48 : 31,114.50 = 7,598.04 : x
  2. Step 2: Convert to fraction form
    20,745.48/31,114.50 = 7,598.04/x
  3. Step 3: Cross multiply
    20,745.48x = 31,114.50 × 7,598.04
  4. Step 4: Simplify right side
    20,745.48x = 236,409,215.58
  5. Step 5: Solve for x
    x = 236,409,215.58/20,745.48
  6. Step 6: Final answer
    x = 11,395.70

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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.