Home / 39,641.06-54,706.32-21,736.76

Finding the Fourth Proportional to 39,641.06, 54,706.32 and 21,736.76

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Solution

The fourth proportional to 39,641.06, 54,706.32 and 21,736.76 is: 29,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.06 : 54,706.32 = 21,736.76 : x
  2. Step 2: Convert to fraction form
    39,641.06/54,706.32 = 21,736.76/x
  3. Step 3: Cross multiply
    39,641.06x = 54,706.32 × 21,736.76
  4. Step 4: Simplify right side
    39,641.06x = 1,189,137,874.79
  5. Step 5: Solve for x
    x = 1,189,137,874.79/39,641.06
  6. Step 6: Final answer
    x = 29,997.63

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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.