Home / 20,751.93-31,132.08-7,604.01

Finding the Fourth Proportional to 20,751.93, 31,132.08 and 7,604.01

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Solution

The fourth proportional to 20,751.93, 31,132.08 and 7,604.01 is: 11,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.93 : 31,132.08 = 7,604.01 : x
  2. Step 2: Convert to fraction form
    20,751.93/31,132.08 = 7,604.01/x
  3. Step 3: Cross multiply
    20,751.93x = 31,132.08 × 7,604.01
  4. Step 4: Simplify right side
    20,751.93x = 236,728,647.64
  5. Step 5: Solve for x
    x = 236,728,647.64/20,751.93
  6. Step 6: Final answer
    x = 11,407.55

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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.