Home / 28,733-39,651.15-16,157.78

Finding the Fourth Proportional to 28,733, 39,651.15 and 16,157.78

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Solution

The fourth proportional to 28,733, 39,651.15 and 16,157.78 is: 22,297.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,733 : 39,651.15 = 16,157.78 : x
  2. Step 2: Convert to fraction form
    28,733/39,651.15 = 16,157.78/x
  3. Step 3: Cross multiply
    28,733x = 39,651.15 × 16,157.78
  4. Step 4: Simplify right side
    28,733x = 640,674,558.45
  5. Step 5: Solve for x
    x = 640,674,558.45/28,733
  6. Step 6: Final answer
    x = 22,297.52

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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.