Home / 30,415.96-41,973.16-16,986.82

Finding the Fourth Proportional to 30,415.96, 41,973.16 and 16,986.82

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Solution

The fourth proportional to 30,415.96, 41,973.16 and 16,986.82 is: 23,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.96 : 41,973.16 = 16,986.82 : x
  2. Step 2: Convert to fraction form
    30,415.96/41,973.16 = 16,986.82/x
  3. Step 3: Cross multiply
    30,415.96x = 41,973.16 × 16,986.82
  4. Step 4: Simplify right side
    30,415.96x = 712,990,303.89
  5. Step 5: Solve for x
    x = 712,990,303.89/30,415.96
  6. Step 6: Final answer
    x = 23,441.33

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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.