Home / 27,786.33-38,349.60-15,853.56

Finding the Fourth Proportional to 27,786.33, 38,349.60 and 15,853.56

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Solution

The fourth proportional to 27,786.33, 38,349.60 and 15,853.56 is: 21,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.33 : 38,349.60 = 15,853.56 : x
  2. Step 2: Convert to fraction form
    27,786.33/38,349.60 = 15,853.56/x
  3. Step 3: Cross multiply
    27,786.33x = 38,349.60 × 15,853.56
  4. Step 4: Simplify right side
    27,786.33x = 607,977,684.58
  5. Step 5: Solve for x
    x = 607,977,684.58/27,786.33
  6. Step 6: Final answer
    x = 21,880.46

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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.