Home / 28,611.44-39,507.24-18,556.95

Finding the Fourth Proportional to 28,611.44, 39,507.24 and 18,556.95

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Solution

The fourth proportional to 28,611.44, 39,507.24 and 18,556.95 is: 25,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.44 : 39,507.24 = 18,556.95 : x
  2. Step 2: Convert to fraction form
    28,611.44/39,507.24 = 18,556.95/x
  3. Step 3: Cross multiply
    28,611.44x = 39,507.24 × 18,556.95
  4. Step 4: Simplify right side
    28,611.44x = 733,133,877.32
  5. Step 5: Solve for x
    x = 733,133,877.32/28,611.44
  6. Step 6: Final answer
    x = 25,623.81

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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.