Home / 28,960.44-39,969.70-18,351.06

Finding the Fourth Proportional to 28,960.44, 39,969.70 and 18,351.06

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Solution

The fourth proportional to 28,960.44, 39,969.70 and 18,351.06 is: 25,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.44 : 39,969.70 = 18,351.06 : x
  2. Step 2: Convert to fraction form
    28,960.44/39,969.70 = 18,351.06/x
  3. Step 3: Cross multiply
    28,960.44x = 39,969.70 × 18,351.06
  4. Step 4: Simplify right side
    28,960.44x = 733,486,362.88
  5. Step 5: Solve for x
    x = 733,486,362.88/28,960.44
  6. Step 6: Final answer
    x = 25,327.18

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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.