Home / 30,025.76-45,054.63-16,879.05

Finding the Fourth Proportional to 30,025.76, 45,054.63 and 16,879.05

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Solution

The fourth proportional to 30,025.76, 45,054.63 and 16,879.05 is: 25,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025.76 : 45,054.63 = 16,879.05 : x
  2. Step 2: Convert to fraction form
    30,025.76/45,054.63 = 16,879.05/x
  3. Step 3: Cross multiply
    30,025.76x = 45,054.63 × 16,879.05
  4. Step 4: Simplify right side
    30,025.76x = 760,479,352.50
  5. Step 5: Solve for x
    x = 760,479,352.50/30,025.76
  6. Step 6: Final answer
    x = 25,327.57

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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.