Home / 19,641.93-27,099.75-11,143.41

Finding the Fourth Proportional to 19,641.93, 27,099.75 and 11,143.41

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Solution

The fourth proportional to 19,641.93, 27,099.75 and 11,143.41 is: 15,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.93 : 27,099.75 = 11,143.41 : x
  2. Step 2: Convert to fraction form
    19,641.93/27,099.75 = 11,143.41/x
  3. Step 3: Cross multiply
    19,641.93x = 27,099.75 × 11,143.41
  4. Step 4: Simplify right side
    19,641.93x = 301,983,625.15
  5. Step 5: Solve for x
    x = 301,983,625.15/19,641.93
  6. Step 6: Final answer
    x = 15,374.44

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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.