Home / 20,941.93-28,899.07-11,990.27

Finding the Fourth Proportional to 20,941.93, 28,899.07 and 11,990.27

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Solution

The fourth proportional to 20,941.93, 28,899.07 and 11,990.27 is: 16,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.93 : 28,899.07 = 11,990.27 : x
  2. Step 2: Convert to fraction form
    20,941.93/28,899.07 = 11,990.27/x
  3. Step 3: Cross multiply
    20,941.93x = 28,899.07 × 11,990.27
  4. Step 4: Simplify right side
    20,941.93x = 346,507,652.05
  5. Step 5: Solve for x
    x = 346,507,652.05/20,941.93
  6. Step 6: Final answer
    x = 16,546.12

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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.