Home / 38,736.54-57,980.25-19,991.04

Finding the Fourth Proportional to 38,736.54, 57,980.25 and 19,991.04

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Solution

The fourth proportional to 38,736.54, 57,980.25 and 19,991.04 is: 29,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.54 : 57,980.25 = 19,991.04 : x
  2. Step 2: Convert to fraction form
    38,736.54/57,980.25 = 19,991.04/x
  3. Step 3: Cross multiply
    38,736.54x = 57,980.25 × 19,991.04
  4. Step 4: Simplify right side
    38,736.54x = 1,159,085,639.42
  5. Step 5: Solve for x
    x = 1,159,085,639.42/38,736.54
  6. Step 6: Final answer
    x = 29,922.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.