Home / 21,945.44-32,918.16-12,079.64

Finding the Fourth Proportional to 21,945.44, 32,918.16 and 12,079.64

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Solution

The fourth proportional to 21,945.44, 32,918.16 and 12,079.64 is: 18,119.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.44 : 32,918.16 = 12,079.64 : x
  2. Step 2: Convert to fraction form
    21,945.44/32,918.16 = 12,079.64/x
  3. Step 3: Cross multiply
    21,945.44x = 32,918.16 × 12,079.64
  4. Step 4: Simplify right side
    21,945.44x = 397,639,522.26
  5. Step 5: Solve for x
    x = 397,639,522.26/21,945.44
  6. Step 6: Final answer
    x = 18,119.46

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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.