Home / 28,551.38-39,401.98-15,976.22

Finding the Fourth Proportional to 28,551.38, 39,401.98 and 15,976.22

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Solution

The fourth proportional to 28,551.38, 39,401.98 and 15,976.22 is: 22,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.38 : 39,401.98 = 15,976.22 : x
  2. Step 2: Convert to fraction form
    28,551.38/39,401.98 = 15,976.22/x
  3. Step 3: Cross multiply
    28,551.38x = 39,401.98 × 15,976.22
  4. Step 4: Simplify right side
    28,551.38x = 629,494,700.92
  5. Step 5: Solve for x
    x = 629,494,700.92/28,551.38
  6. Step 6: Final answer
    x = 22,047.79

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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.