Home / 28,825.38-39,777.21-16,080.44

Finding the Fourth Proportional to 28,825.38, 39,777.21 and 16,080.44

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Solution

The fourth proportional to 28,825.38, 39,777.21 and 16,080.44 is: 22,189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.38 : 39,777.21 = 16,080.44 : x
  2. Step 2: Convert to fraction form
    28,825.38/39,777.21 = 16,080.44/x
  3. Step 3: Cross multiply
    28,825.38x = 39,777.21 × 16,080.44
  4. Step 4: Simplify right side
    28,825.38x = 639,634,839.89
  5. Step 5: Solve for x
    x = 639,634,839.89/28,825.38
  6. Step 6: Final answer
    x = 22,189.99

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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.