Home / 39,990.21-55,193.57-22,993.12

Finding the Fourth Proportional to 39,990.21, 55,193.57 and 22,993.12

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Solution

The fourth proportional to 39,990.21, 55,193.57 and 22,993.12 is: 31,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.21 : 55,193.57 = 22,993.12 : x
  2. Step 2: Convert to fraction form
    39,990.21/55,193.57 = 22,993.12/x
  3. Step 3: Cross multiply
    39,990.21x = 55,193.57 × 22,993.12
  4. Step 4: Simplify right side
    39,990.21x = 1,269,072,108.03
  5. Step 5: Solve for x
    x = 1,269,072,108.03/39,990.21
  6. Step 6: Final answer
    x = 31,734.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.