Home / 30,382.13-45,571.25-11,403.02

Finding the Fourth Proportional to 30,382.13, 45,571.25 and 11,403.02

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Solution

The fourth proportional to 30,382.13, 45,571.25 and 11,403.02 is: 17,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.13 : 45,571.25 = 11,403.02 : x
  2. Step 2: Convert to fraction form
    30,382.13/45,571.25 = 11,403.02/x
  3. Step 3: Cross multiply
    30,382.13x = 45,571.25 × 11,403.02
  4. Step 4: Simplify right side
    30,382.13x = 519,649,590.30
  5. Step 5: Solve for x
    x = 519,649,590.30/30,382.13
  6. Step 6: Final answer
    x = 17,103.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.