Home / 38,643-57,947.62-13,674.75

Finding the Fourth Proportional to 38,643, 57,947.62 and 13,674.75

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Solution

The fourth proportional to 38,643, 57,947.62 and 13,674.75 is: 20,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643 : 57,947.62 = 13,674.75 : x
  2. Step 2: Convert to fraction form
    38,643/57,947.62 = 13,674.75/x
  3. Step 3: Cross multiply
    38,643x = 57,947.62 × 13,674.75
  4. Step 4: Simplify right side
    38,643x = 792,419,216.60
  5. Step 5: Solve for x
    x = 792,419,216.60/38,643
  6. Step 6: Final answer
    x = 20,506.15

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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.