Home / 20,032.56-27,643.80-11,079.48

Finding the Fourth Proportional to 20,032.56, 27,643.80 and 11,079.48

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Solution

The fourth proportional to 20,032.56, 27,643.80 and 11,079.48 is: 15,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.56 : 27,643.80 = 11,079.48 : x
  2. Step 2: Convert to fraction form
    20,032.56/27,643.80 = 11,079.48/x
  3. Step 3: Cross multiply
    20,032.56x = 27,643.80 × 11,079.48
  4. Step 4: Simplify right side
    20,032.56x = 306,278,929.22
  5. Step 5: Solve for x
    x = 306,278,929.22/20,032.56
  6. Step 6: Final answer
    x = 15,289.06

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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.