Home / 28,516.24-39,351.24-15,768.62

Finding the Fourth Proportional to 28,516.24, 39,351.24 and 15,768.62

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Solution

The fourth proportional to 28,516.24, 39,351.24 and 15,768.62 is: 21,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.24 : 39,351.24 = 15,768.62 : x
  2. Step 2: Convert to fraction form
    28,516.24/39,351.24 = 15,768.62/x
  3. Step 3: Cross multiply
    28,516.24x = 39,351.24 × 15,768.62
  4. Step 4: Simplify right side
    28,516.24x = 620,514,750.09
  5. Step 5: Solve for x
    x = 620,514,750.09/28,516.24
  6. Step 6: Final answer
    x = 21,760.05

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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.