Home / 30,103.86-41,544.81-18,166.99

Finding the Fourth Proportional to 30,103.86, 41,544.81 and 18,166.99

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Solution

The fourth proportional to 30,103.86, 41,544.81 and 18,166.99 is: 25,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.86 : 41,544.81 = 18,166.99 : x
  2. Step 2: Convert to fraction form
    30,103.86/41,544.81 = 18,166.99/x
  3. Step 3: Cross multiply
    30,103.86x = 41,544.81 × 18,166.99
  4. Step 4: Simplify right side
    30,103.86x = 754,744,147.82
  5. Step 5: Solve for x
    x = 754,744,147.82/30,103.86
  6. Step 6: Final answer
    x = 25,071.34

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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.