Home / 28,369.41-39,149.01-15,794.16

Finding the Fourth Proportional to 28,369.41, 39,149.01 and 15,794.16

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Solution

The fourth proportional to 28,369.41, 39,149.01 and 15,794.16 is: 21,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.41 : 39,149.01 = 15,794.16 : x
  2. Step 2: Convert to fraction form
    28,369.41/39,149.01 = 15,794.16/x
  3. Step 3: Cross multiply
    28,369.41x = 39,149.01 × 15,794.16
  4. Step 4: Simplify right side
    28,369.41x = 618,325,727.78
  5. Step 5: Solve for x
    x = 618,325,727.78/28,369.41
  6. Step 6: Final answer
    x = 21,795.51

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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.