Home / 28,704.27-39,610.62-15,958.32

Finding the Fourth Proportional to 28,704.27, 39,610.62 and 15,958.32

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Solution

The fourth proportional to 28,704.27, 39,610.62 and 15,958.32 is: 22,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.27 : 39,610.62 = 15,958.32 : x
  2. Step 2: Convert to fraction form
    28,704.27/39,610.62 = 15,958.32/x
  3. Step 3: Cross multiply
    28,704.27x = 39,610.62 × 15,958.32
  4. Step 4: Simplify right side
    28,704.27x = 632,118,800.82
  5. Step 5: Solve for x
    x = 632,118,800.82/28,704.27
  6. Step 6: Final answer
    x = 22,021.77

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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.