Home / 19,876.24-27,400.31-13,889.33

Finding the Fourth Proportional to 19,876.24, 27,400.31 and 13,889.33

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Solution

The fourth proportional to 19,876.24, 27,400.31 and 13,889.33 is: 19,147.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.24 : 27,400.31 = 13,889.33 : x
  2. Step 2: Convert to fraction form
    19,876.24/27,400.31 = 13,889.33/x
  3. Step 3: Cross multiply
    19,876.24x = 27,400.31 × 13,889.33
  4. Step 4: Simplify right side
    19,876.24x = 380,571,982.42
  5. Step 5: Solve for x
    x = 380,571,982.42/19,876.24
  6. Step 6: Final answer
    x = 19,147.08

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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.