Home / 27,645.00-38,148.87-15,709.44

Finding the Fourth Proportional to 27,645.00, 38,148.87 and 15,709.44

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Solution

The fourth proportional to 27,645.00, 38,148.87 and 15,709.44 is: 21,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.00 : 38,148.87 = 15,709.44 : x
  2. Step 2: Convert to fraction form
    27,645.00/38,148.87 = 15,709.44/x
  3. Step 3: Cross multiply
    27,645.00x = 38,148.87 × 15,709.44
  4. Step 4: Simplify right side
    27,645.00x = 599,297,586.30
  5. Step 5: Solve for x
    x = 599,297,586.30/27,645.00
  6. Step 6: Final answer
    x = 21,678.34

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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.