Home / 28,874.40-39,847.20-16,296.72

Finding the Fourth Proportional to 28,874.40, 39,847.20 and 16,296.72

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Solution

The fourth proportional to 28,874.40, 39,847.20 and 16,296.72 is: 22,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.40 : 39,847.20 = 16,296.72 : x
  2. Step 2: Convert to fraction form
    28,874.40/39,847.20 = 16,296.72/x
  3. Step 3: Cross multiply
    28,874.40x = 39,847.20 × 16,296.72
  4. Step 4: Simplify right side
    28,874.40x = 649,378,661.18
  5. Step 5: Solve for x
    x = 649,378,661.18/28,874.40
  6. Step 6: Final answer
    x = 22,489.77

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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.