Home / 38,922.99-53,716.47-21,696.45

Finding the Fourth Proportional to 38,922.99, 53,716.47 and 21,696.45

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Solution

The fourth proportional to 38,922.99, 53,716.47 and 21,696.45 is: 29,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922.99 : 53,716.47 = 21,696.45 : x
  2. Step 2: Convert to fraction form
    38,922.99/53,716.47 = 21,696.45/x
  3. Step 3: Cross multiply
    38,922.99x = 53,716.47 × 21,696.45
  4. Step 4: Simplify right side
    38,922.99x = 1,165,456,705.53
  5. Step 5: Solve for x
    x = 1,165,456,705.53/38,922.99
  6. Step 6: Final answer
    x = 29,942.63

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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.