Home / 30,205.85-41,699.23-18,881.65

Finding the Fourth Proportional to 30,205.85, 41,699.23 and 18,881.65

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Solution

The fourth proportional to 30,205.85, 41,699.23 and 18,881.65 is: 26,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.85 : 41,699.23 = 18,881.65 : x
  2. Step 2: Convert to fraction form
    30,205.85/41,699.23 = 18,881.65/x
  3. Step 3: Cross multiply
    30,205.85x = 41,699.23 × 18,881.65
  4. Step 4: Simplify right side
    30,205.85x = 787,350,114.68
  5. Step 5: Solve for x
    x = 787,350,114.68/30,205.85
  6. Step 6: Final answer
    x = 26,066.14

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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.