Home / 15,515.32-23,272.71-3,828.55

Finding the Fourth Proportional to 15,515.32, 23,272.71 and 3,828.55

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Solution

The fourth proportional to 15,515.32, 23,272.71 and 3,828.55 is: 5,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.32 : 23,272.71 = 3,828.55 : x
  2. Step 2: Convert to fraction form
    15,515.32/23,272.71 = 3,828.55/x
  3. Step 3: Cross multiply
    15,515.32x = 23,272.71 × 3,828.55
  4. Step 4: Simplify right side
    15,515.32x = 89,100,733.87
  5. Step 5: Solve for x
    x = 89,100,733.87/15,515.32
  6. Step 6: Final answer
    x = 5,742.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.