Home / 38,639.15-57,943.84-13,674.55

Finding the Fourth Proportional to 38,639.15, 57,943.84 and 13,674.55

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Solution

The fourth proportional to 38,639.15, 57,943.84 and 13,674.55 is: 20,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.15 : 57,943.84 = 13,674.55 : x
  2. Step 2: Convert to fraction form
    38,639.15/57,943.84 = 13,674.55/x
  3. Step 3: Cross multiply
    38,639.15x = 57,943.84 × 13,674.55
  4. Step 4: Simplify right side
    38,639.15x = 792,355,937.27
  5. Step 5: Solve for x
    x = 792,355,937.27/38,639.15
  6. Step 6: Final answer
    x = 20,506.56

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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.