Home / 19,927.90-27,499.94-11,431.44

Finding the Fourth Proportional to 19,927.90, 27,499.94 and 11,431.44

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Solution

The fourth proportional to 19,927.90, 27,499.94 and 11,431.44 is: 15,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.90 : 27,499.94 = 11,431.44 : x
  2. Step 2: Convert to fraction form
    19,927.90/27,499.94 = 11,431.44/x
  3. Step 3: Cross multiply
    19,927.90x = 27,499.94 × 11,431.44
  4. Step 4: Simplify right side
    19,927.90x = 314,363,914.11
  5. Step 5: Solve for x
    x = 314,363,914.11/19,927.90
  6. Step 6: Final answer
    x = 15,775.06

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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.