Home / 28,824-39,777.12-16,249.20

Finding the Fourth Proportional to 28,824, 39,777.12 and 16,249.20

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Solution

The fourth proportional to 28,824, 39,777.12 and 16,249.20 is: 22,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824 : 39,777.12 = 16,249.20 : x
  2. Step 2: Convert to fraction form
    28,824/39,777.12 = 16,249.20/x
  3. Step 3: Cross multiply
    28,824x = 39,777.12 × 16,249.20
  4. Step 4: Simplify right side
    28,824x = 646,346,378.30
  5. Step 5: Solve for x
    x = 646,346,378.30/28,824
  6. Step 6: Final answer
    x = 22,423.90

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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.