Home / 20,824.96-28,738.48-11,393.52

Finding the Fourth Proportional to 20,824.96, 28,738.48 and 11,393.52

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Solution

The fourth proportional to 20,824.96, 28,738.48 and 11,393.52 is: 15,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.96 : 28,738.48 = 11,393.52 : x
  2. Step 2: Convert to fraction form
    20,824.96/28,738.48 = 11,393.52/x
  3. Step 3: Cross multiply
    20,824.96x = 28,738.48 × 11,393.52
  4. Step 4: Simplify right side
    20,824.96x = 327,432,446.65
  5. Step 5: Solve for x
    x = 327,432,446.65/20,824.96
  6. Step 6: Final answer
    x = 15,723.08

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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.