Home / 28,438.97-42,664.73-10,908.81

Finding the Fourth Proportional to 28,438.97, 42,664.73 and 10,908.81

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Solution

The fourth proportional to 28,438.97, 42,664.73 and 10,908.81 is: 16,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.97 : 42,664.73 = 10,908.81 : x
  2. Step 2: Convert to fraction form
    28,438.97/42,664.73 = 10,908.81/x
  3. Step 3: Cross multiply
    28,438.97x = 42,664.73 × 10,908.81
  4. Step 4: Simplify right side
    28,438.97x = 465,421,378.73
  5. Step 5: Solve for x
    x = 465,421,378.73/28,438.97
  6. Step 6: Final answer
    x = 16,365.62

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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.