Home / 28,297.62-39,050.91-15,722.37

Finding the Fourth Proportional to 28,297.62, 39,050.91 and 15,722.37

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Solution

The fourth proportional to 28,297.62, 39,050.91 and 15,722.37 is: 21,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.62 : 39,050.91 = 15,722.37 : x
  2. Step 2: Convert to fraction form
    28,297.62/39,050.91 = 15,722.37/x
  3. Step 3: Cross multiply
    28,297.62x = 39,050.91 × 15,722.37
  4. Step 4: Simplify right side
    28,297.62x = 613,972,855.86
  5. Step 5: Solve for x
    x = 613,972,855.86/28,297.62
  6. Step 6: Final answer
    x = 21,696.98

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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.