Home / 28,789.50-39,729.60-16,214.52

Finding the Fourth Proportional to 28,789.50, 39,729.60 and 16,214.52

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Solution

The fourth proportional to 28,789.50, 39,729.60 and 16,214.52 is: 22,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.50 : 39,729.60 = 16,214.52 : x
  2. Step 2: Convert to fraction form
    28,789.50/39,729.60 = 16,214.52/x
  3. Step 3: Cross multiply
    28,789.50x = 39,729.60 × 16,214.52
  4. Step 4: Simplify right side
    28,789.50x = 644,196,393.79
  5. Step 5: Solve for x
    x = 644,196,393.79/28,789.50
  6. Step 6: Final answer
    x = 22,376.09

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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.