Home / 39,071.62-53,919.09-21,166.61

Finding the Fourth Proportional to 39,071.62, 53,919.09 and 21,166.61

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Solution

The fourth proportional to 39,071.62, 53,919.09 and 21,166.61 is: 29,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.62 : 53,919.09 = 21,166.61 : x
  2. Step 2: Convert to fraction form
    39,071.62/53,919.09 = 21,166.61/x
  3. Step 3: Cross multiply
    39,071.62x = 53,919.09 × 21,166.61
  4. Step 4: Simplify right side
    39,071.62x = 1,141,284,349.58
  5. Step 5: Solve for x
    x = 1,141,284,349.58/39,071.62
  6. Step 6: Final answer
    x = 29,210.06

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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.