Home / 19,101.46-28,642.80-11,219.32

Finding the Fourth Proportional to 19,101.46, 28,642.80 and 11,219.32

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Solution

The fourth proportional to 19,101.46, 28,642.80 and 11,219.32 is: 16,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.46 : 28,642.80 = 11,219.32 : x
  2. Step 2: Convert to fraction form
    19,101.46/28,642.80 = 11,219.32/x
  3. Step 3: Cross multiply
    19,101.46x = 28,642.80 × 11,219.32
  4. Step 4: Simplify right side
    19,101.46x = 321,352,738.90
  5. Step 5: Solve for x
    x = 321,352,738.90/19,101.46
  6. Step 6: Final answer
    x = 16,823.46

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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.