Home / 20,334.69-28,062.38-11,382.12

Finding the Fourth Proportional to 20,334.69, 28,062.38 and 11,382.12

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Solution

The fourth proportional to 20,334.69, 28,062.38 and 11,382.12 is: 15,707.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334.69 : 28,062.38 = 11,382.12 : x
  2. Step 2: Convert to fraction form
    20,334.69/28,062.38 = 11,382.12/x
  3. Step 3: Cross multiply
    20,334.69x = 28,062.38 × 11,382.12
  4. Step 4: Simplify right side
    20,334.69x = 319,409,319.74
  5. Step 5: Solve for x
    x = 319,409,319.74/20,334.69
  6. Step 6: Final answer
    x = 15,707.61

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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.