Home / 27,728.67-38,265.48-15,153.42

Finding the Fourth Proportional to 27,728.67, 38,265.48 and 15,153.42

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Solution

The fourth proportional to 27,728.67, 38,265.48 and 15,153.42 is: 20,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.67 : 38,265.48 = 15,153.42 : x
  2. Step 2: Convert to fraction form
    27,728.67/38,265.48 = 15,153.42/x
  3. Step 3: Cross multiply
    27,728.67x = 38,265.48 × 15,153.42
  4. Step 4: Simplify right side
    27,728.67x = 579,852,889.94
  5. Step 5: Solve for x
    x = 579,852,889.94/27,728.67
  6. Step 6: Final answer
    x = 20,911.67

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Half scale
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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.