Home / 21,601.87-32,402.79-12,361.39

Finding the Fourth Proportional to 21,601.87, 32,402.79 and 12,361.39

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Solution

The fourth proportional to 21,601.87, 32,402.79 and 12,361.39 is: 18,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.87 : 32,402.79 = 12,361.39 : x
  2. Step 2: Convert to fraction form
    21,601.87/32,402.79 = 12,361.39/x
  3. Step 3: Cross multiply
    21,601.87x = 32,402.79 × 12,361.39
  4. Step 4: Simplify right side
    21,601.87x = 400,543,524.28
  5. Step 5: Solve for x
    x = 400,543,524.28/21,601.87
  6. Step 6: Final answer
    x = 18,542.08

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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.