Home / 30,416.10-41,950.11-18,479.19

Finding the Fourth Proportional to 30,416.10, 41,950.11 and 18,479.19

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Solution

The fourth proportional to 30,416.10, 41,950.11 and 18,479.19 is: 25,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.10 : 41,950.11 = 18,479.19 : x
  2. Step 2: Convert to fraction form
    30,416.10/41,950.11 = 18,479.19/x
  3. Step 3: Cross multiply
    30,416.10x = 41,950.11 × 18,479.19
  4. Step 4: Simplify right side
    30,416.10x = 775,204,053.21
  5. Step 5: Solve for x
    x = 775,204,053.21/30,416.10
  6. Step 6: Final answer
    x = 25,486.64

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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.