Home / 28,639.71-39,507.54-16,698.69

Finding the Fourth Proportional to 28,639.71, 39,507.54 and 16,698.69

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Solution

The fourth proportional to 28,639.71, 39,507.54 and 16,698.69 is: 23,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.71 : 39,507.54 = 16,698.69 : x
  2. Step 2: Convert to fraction form
    28,639.71/39,507.54 = 16,698.69/x
  3. Step 3: Cross multiply
    28,639.71x = 39,507.54 × 16,698.69
  4. Step 4: Simplify right side
    28,639.71x = 659,724,163.12
  5. Step 5: Solve for x
    x = 659,724,163.12/28,639.71
  6. Step 6: Final answer
    x = 23,035.29

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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.