Home / 36,105.92-49,825.76-21,001.60

Finding the Fourth Proportional to 36,105.92, 49,825.76 and 21,001.60

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Solution

The fourth proportional to 36,105.92, 49,825.76 and 21,001.60 is: 28,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,105.92 : 49,825.76 = 21,001.60 : x
  2. Step 2: Convert to fraction form
    36,105.92/49,825.76 = 21,001.60/x
  3. Step 3: Cross multiply
    36,105.92x = 49,825.76 × 21,001.60
  4. Step 4: Simplify right side
    36,105.92x = 1,046,420,681.22
  5. Step 5: Solve for x
    x = 1,046,420,681.22/36,105.92
  6. Step 6: Final answer
    x = 28,981.97

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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.