Home / 21,799.74-32,702.85-7,945.50

Finding the Fourth Proportional to 21,799.74, 32,702.85 and 7,945.50

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Solution

The fourth proportional to 21,799.74, 32,702.85 and 7,945.50 is: 11,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.74 : 32,702.85 = 7,945.50 : x
  2. Step 2: Convert to fraction form
    21,799.74/32,702.85 = 7,945.50/x
  3. Step 3: Cross multiply
    21,799.74x = 32,702.85 × 7,945.50
  4. Step 4: Simplify right side
    21,799.74x = 259,840,494.68
  5. Step 5: Solve for x
    x = 259,840,494.68/21,799.74
  6. Step 6: Final answer
    x = 11,919.43

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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.