Home / 30,152.99-41,615.91-18,218.04

Finding the Fourth Proportional to 30,152.99, 41,615.91 and 18,218.04

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Solution

The fourth proportional to 30,152.99, 41,615.91 and 18,218.04 is: 25,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.99 : 41,615.91 = 18,218.04 : x
  2. Step 2: Convert to fraction form
    30,152.99/41,615.91 = 18,218.04/x
  3. Step 3: Cross multiply
    30,152.99x = 41,615.91 × 18,218.04
  4. Step 4: Simplify right side
    30,152.99x = 758,160,313.02
  5. Step 5: Solve for x
    x = 758,160,313.02/30,152.99
  6. Step 6: Final answer
    x = 25,143.79

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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.