Home / 21,161.48-29,195.46-16,117.72

Finding the Fourth Proportional to 21,161.48, 29,195.46 and 16,117.72

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Solution

The fourth proportional to 21,161.48, 29,195.46 and 16,117.72 is: 22,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.48 : 29,195.46 = 16,117.72 : x
  2. Step 2: Convert to fraction form
    21,161.48/29,195.46 = 16,117.72/x
  3. Step 3: Cross multiply
    21,161.48x = 29,195.46 × 16,117.72
  4. Step 4: Simplify right side
    21,161.48x = 470,564,176.56
  5. Step 5: Solve for x
    x = 470,564,176.56/21,161.48
  6. Step 6: Final answer
    x = 22,236.83

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Double scale
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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.