Home / 20,329.32-28,052.91-11,375.16

Finding the Fourth Proportional to 20,329.32, 28,052.91 and 11,375.16

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Solution

The fourth proportional to 20,329.32, 28,052.91 and 11,375.16 is: 15,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.32 : 28,052.91 = 11,375.16 : x
  2. Step 2: Convert to fraction form
    20,329.32/28,052.91 = 11,375.16/x
  3. Step 3: Cross multiply
    20,329.32x = 28,052.91 × 11,375.16
  4. Step 4: Simplify right side
    20,329.32x = 319,106,339.72
  5. Step 5: Solve for x
    x = 319,106,339.72/20,329.32
  6. Step 6: Final answer
    x = 15,696.85

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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.