Home / 20,763.44-28,653.62-11,332.20

Finding the Fourth Proportional to 20,763.44, 28,653.62 and 11,332.20

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Solution

The fourth proportional to 20,763.44, 28,653.62 and 11,332.20 is: 15,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.44 : 28,653.62 = 11,332.20 : x
  2. Step 2: Convert to fraction form
    20,763.44/28,653.62 = 11,332.20/x
  3. Step 3: Cross multiply
    20,763.44x = 28,653.62 × 11,332.20
  4. Step 4: Simplify right side
    20,763.44x = 324,708,552.56
  5. Step 5: Solve for x
    x = 324,708,552.56/20,763.44
  6. Step 6: Final answer
    x = 15,638.48

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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.