Home / 19,578.78-27,032.94-12,035.39

Finding the Fourth Proportional to 19,578.78, 27,032.94 and 12,035.39

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Solution

The fourth proportional to 19,578.78, 27,032.94 and 12,035.39 is: 16,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.78 : 27,032.94 = 12,035.39 : x
  2. Step 2: Convert to fraction form
    19,578.78/27,032.94 = 12,035.39/x
  3. Step 3: Cross multiply
    19,578.78x = 27,032.94 × 12,035.39
  4. Step 4: Simplify right side
    19,578.78x = 325,351,840.58
  5. Step 5: Solve for x
    x = 325,351,840.58/19,578.78
  6. Step 6: Final answer
    x = 16,617.57

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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.