Home / 30,309.12-41,830.68-19,163.52

Finding the Fourth Proportional to 30,309.12, 41,830.68 and 19,163.52

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Solution

The fourth proportional to 30,309.12, 41,830.68 and 19,163.52 is: 26,448.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.12 : 41,830.68 = 19,163.52 : x
  2. Step 2: Convert to fraction form
    30,309.12/41,830.68 = 19,163.52/x
  3. Step 3: Cross multiply
    30,309.12x = 41,830.68 × 19,163.52
  4. Step 4: Simplify right side
    30,309.12x = 801,623,072.79
  5. Step 5: Solve for x
    x = 801,623,072.79/30,309.12
  6. Step 6: Final answer
    x = 26,448.25

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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.