Home / 38,988.98-53,804.73-21,993.17

Finding the Fourth Proportional to 38,988.98, 53,804.73 and 21,993.17

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Solution

The fourth proportional to 38,988.98, 53,804.73 and 21,993.17 is: 30,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.98 : 53,804.73 = 21,993.17 : x
  2. Step 2: Convert to fraction form
    38,988.98/53,804.73 = 21,993.17/x
  3. Step 3: Cross multiply
    38,988.98x = 53,804.73 × 21,993.17
  4. Step 4: Simplify right side
    38,988.98x = 1,183,336,304.67
  5. Step 5: Solve for x
    x = 1,183,336,304.67/38,988.98
  6. Step 6: Final answer
    x = 30,350.54

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Similar ratio
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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.