Home / 39,642.04-54,705.58-21,736.99

Finding the Fourth Proportional to 39,642.04, 54,705.58 and 21,736.99

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Solution

The fourth proportional to 39,642.04, 54,705.58 and 21,736.99 is: 29,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,642.04 : 54,705.58 = 21,736.99 : x
  2. Step 2: Convert to fraction form
    39,642.04/54,705.58 = 21,736.99/x
  3. Step 3: Cross multiply
    39,642.04x = 54,705.58 × 21,736.99
  4. Step 4: Simplify right side
    39,642.04x = 1,189,134,645.40
  5. Step 5: Solve for x
    x = 1,189,134,645.40/39,642.04
  6. Step 6: Final answer
    x = 29,996.81

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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.