Home / 30,218.31-41,699.34-16,789.32

Finding the Fourth Proportional to 30,218.31, 41,699.34 and 16,789.32

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Solution

The fourth proportional to 30,218.31, 41,699.34 and 16,789.32 is: 23,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.31 : 41,699.34 = 16,789.32 : x
  2. Step 2: Convert to fraction form
    30,218.31/41,699.34 = 16,789.32/x
  3. Step 3: Cross multiply
    30,218.31x = 41,699.34 × 16,789.32
  4. Step 4: Simplify right side
    30,218.31x = 700,103,563.05
  5. Step 5: Solve for x
    x = 700,103,563.05/30,218.31
  6. Step 6: Final answer
    x = 23,168.19

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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.