Home / 27,939.93-38,557.01-15,675.36

Finding the Fourth Proportional to 27,939.93, 38,557.01 and 15,675.36

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Solution

The fourth proportional to 27,939.93, 38,557.01 and 15,675.36 is: 21,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.93 : 38,557.01 = 15,675.36 : x
  2. Step 2: Convert to fraction form
    27,939.93/38,557.01 = 15,675.36/x
  3. Step 3: Cross multiply
    27,939.93x = 38,557.01 × 15,675.36
  4. Step 4: Simplify right side
    27,939.93x = 604,394,906.87
  5. Step 5: Solve for x
    x = 604,394,906.87/27,939.93
  6. Step 6: Final answer
    x = 21,631.94

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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.