Home / 28,550.16-39,401.32-15,974.80

Finding the Fourth Proportional to 28,550.16, 39,401.32 and 15,974.80

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Solution

The fourth proportional to 28,550.16, 39,401.32 and 15,974.80 is: 22,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.16 : 39,401.32 = 15,974.80 : x
  2. Step 2: Convert to fraction form
    28,550.16/39,401.32 = 15,974.80/x
  3. Step 3: Cross multiply
    28,550.16x = 39,401.32 × 15,974.80
  4. Step 4: Simplify right side
    28,550.16x = 629,428,206.74
  5. Step 5: Solve for x
    x = 629,428,206.74/28,550.16
  6. Step 6: Final answer
    x = 22,046.40

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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.