Home / 20,749.97-31,124.94-7,603.37

Finding the Fourth Proportional to 20,749.97, 31,124.94 and 7,603.37

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Solution

The fourth proportional to 20,749.97, 31,124.94 and 7,603.37 is: 11,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.97 : 31,124.94 = 7,603.37 : x
  2. Step 2: Convert to fraction form
    20,749.97/31,124.94 = 7,603.37/x
  3. Step 3: Cross multiply
    20,749.97x = 31,124.94 × 7,603.37
  4. Step 4: Simplify right side
    20,749.97x = 236,654,435.05
  5. Step 5: Solve for x
    x = 236,654,435.05/20,749.97
  6. Step 6: Final answer
    x = 11,405.05

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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.