Home / 19,074.32-28,450.64-18,491.12

Finding the Fourth Proportional to 19,074.32, 28,450.64 and 18,491.12

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Solution

The fourth proportional to 19,074.32, 28,450.64 and 18,491.12 is: 27,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.32 : 28,450.64 = 18,491.12 : x
  2. Step 2: Convert to fraction form
    19,074.32/28,450.64 = 18,491.12/x
  3. Step 3: Cross multiply
    19,074.32x = 28,450.64 × 18,491.12
  4. Step 4: Simplify right side
    19,074.32x = 526,084,198.32
  5. Step 5: Solve for x
    x = 526,084,198.32/19,074.32
  6. Step 6: Final answer
    x = 27,580.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.