Home / 28,789.92-39,729.51-16,214.67

Finding the Fourth Proportional to 28,789.92, 39,729.51 and 16,214.67

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Solution

The fourth proportional to 28,789.92, 39,729.51 and 16,214.67 is: 22,375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.92 : 39,729.51 = 16,214.67 : x
  2. Step 2: Convert to fraction form
    28,789.92/39,729.51 = 16,214.67/x
  3. Step 3: Cross multiply
    28,789.92x = 39,729.51 × 16,214.67
  4. Step 4: Simplify right side
    28,789.92x = 644,200,893.91
  5. Step 5: Solve for x
    x = 644,200,893.91/28,789.92
  6. Step 6: Final answer
    x = 22,375.92

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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.