Home / 28,853.92-39,821.44-16,917.76

Finding the Fourth Proportional to 28,853.92, 39,821.44 and 16,917.76

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Solution

The fourth proportional to 28,853.92, 39,821.44 and 16,917.76 is: 23,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.92 : 39,821.44 = 16,917.76 : x
  2. Step 2: Convert to fraction form
    28,853.92/39,821.44 = 16,917.76/x
  3. Step 3: Cross multiply
    28,853.92x = 39,821.44 × 16,917.76
  4. Step 4: Simplify right side
    28,853.92x = 673,689,564.77
  5. Step 5: Solve for x
    x = 673,689,564.77/28,853.92
  6. Step 6: Final answer
    x = 23,348.29

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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.