Home / 30,575.88-42,181.92-19,225.26

Finding the Fourth Proportional to 30,575.88, 42,181.92 and 19,225.26

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Solution

The fourth proportional to 30,575.88, 42,181.92 and 19,225.26 is: 26,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.88 : 42,181.92 = 19,225.26 : x
  2. Step 2: Convert to fraction form
    30,575.88/42,181.92 = 19,225.26/x
  3. Step 3: Cross multiply
    30,575.88x = 42,181.92 × 19,225.26
  4. Step 4: Simplify right side
    30,575.88x = 810,958,379.30
  5. Step 5: Solve for x
    x = 810,958,379.30/30,575.88
  6. Step 6: Final answer
    x = 26,522.81

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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.