Home / 28,704.28-39,613.08-16,129

Finding the Fourth Proportional to 28,704.28, 39,613.08 and 16,129

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Solution

The fourth proportional to 28,704.28, 39,613.08 and 16,129 is: 22,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.28 : 39,613.08 = 16,129 : x
  2. Step 2: Convert to fraction form
    28,704.28/39,613.08 = 16,129/x
  3. Step 3: Cross multiply
    28,704.28x = 39,613.08 × 16,129
  4. Step 4: Simplify right side
    28,704.28x = 638,919,367.32
  5. Step 5: Solve for x
    x = 638,919,367.32/28,704.28
  6. Step 6: Final answer
    x = 22,258.68

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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.