Home / 14,072.32-21,121.44-13,225.60

Finding the Fourth Proportional to 14,072.32, 21,121.44 and 13,225.60

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Solution

The fourth proportional to 14,072.32, 21,121.44 and 13,225.60 is: 19,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.32 : 21,121.44 = 13,225.60 : x
  2. Step 2: Convert to fraction form
    14,072.32/21,121.44 = 13,225.60/x
  3. Step 3: Cross multiply
    14,072.32x = 21,121.44 × 13,225.60
  4. Step 4: Simplify right side
    14,072.32x = 279,343,716.86
  5. Step 5: Solve for x
    x = 279,343,716.86/14,072.32
  6. Step 6: Final answer
    x = 19,850.58

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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.