Home / 30,229.99-41,720.77-18,293.07

Finding the Fourth Proportional to 30,229.99, 41,720.77 and 18,293.07

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Solution

The fourth proportional to 30,229.99, 41,720.77 and 18,293.07 is: 25,246.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,229.99 : 41,720.77 = 18,293.07 : x
  2. Step 2: Convert to fraction form
    30,229.99/41,720.77 = 18,293.07/x
  3. Step 3: Cross multiply
    30,229.99x = 41,720.77 × 18,293.07
  4. Step 4: Simplify right side
    30,229.99x = 763,201,145.38
  5. Step 5: Solve for x
    x = 763,201,145.38/30,229.99
  6. Step 6: Final answer
    x = 25,246.49

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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.