Home / 30,879.63-42,613.79-16,732.44

Finding the Fourth Proportional to 30,879.63, 42,613.79 and 16,732.44

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Solution

The fourth proportional to 30,879.63, 42,613.79 and 16,732.44 is: 23,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.63 : 42,613.79 = 16,732.44 : x
  2. Step 2: Convert to fraction form
    30,879.63/42,613.79 = 16,732.44/x
  3. Step 3: Cross multiply
    30,879.63x = 42,613.79 × 16,732.44
  4. Step 4: Simplify right side
    30,879.63x = 713,032,600.69
  5. Step 5: Solve for x
    x = 713,032,600.69/30,879.63
  6. Step 6: Final answer
    x = 23,090.71

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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.