Home / 38,653.11-57,986.59-19,928.12

Finding the Fourth Proportional to 38,653.11, 57,986.59 and 19,928.12

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Solution

The fourth proportional to 38,653.11, 57,986.59 and 19,928.12 is: 29,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.11 : 57,986.59 = 19,928.12 : x
  2. Step 2: Convert to fraction form
    38,653.11/57,986.59 = 19,928.12/x
  3. Step 3: Cross multiply
    38,653.11x = 57,986.59 × 19,928.12
  4. Step 4: Simplify right side
    38,653.11x = 1,155,563,624.27
  5. Step 5: Solve for x
    x = 1,155,563,624.27/38,653.11
  6. Step 6: Final answer
    x = 29,895.75

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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.