Home / 30,416.20-41,950.26-18,479.20

Finding the Fourth Proportional to 30,416.20, 41,950.26 and 18,479.20

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Solution

The fourth proportional to 30,416.20, 41,950.26 and 18,479.20 is: 25,486.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.20 : 41,950.26 = 18,479.20 : x
  2. Step 2: Convert to fraction form
    30,416.20/41,950.26 = 18,479.20/x
  3. Step 3: Cross multiply
    30,416.20x = 41,950.26 × 18,479.20
  4. Step 4: Simplify right side
    30,416.20x = 775,207,244.59
  5. Step 5: Solve for x
    x = 775,207,244.59/30,416.20
  6. Step 6: Final answer
    x = 25,486.66

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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.