Home / 28,867.46-39,847.68-16,940.79

Finding the Fourth Proportional to 28,867.46, 39,847.68 and 16,940.79

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Solution

The fourth proportional to 28,867.46, 39,847.68 and 16,940.79 is: 23,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.46 : 39,847.68 = 16,940.79 : x
  2. Step 2: Convert to fraction form
    28,867.46/39,847.68 = 16,940.79/x
  3. Step 3: Cross multiply
    28,867.46x = 39,847.68 × 16,940.79
  4. Step 4: Simplify right side
    28,867.46x = 675,051,178.87
  5. Step 5: Solve for x
    x = 675,051,178.87/28,867.46
  6. Step 6: Final answer
    x = 23,384.51

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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.