Home / 30,575.07-42,175.72-19,226.60

Finding the Fourth Proportional to 30,575.07, 42,175.72 and 19,226.60

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Solution

The fourth proportional to 30,575.07, 42,175.72 and 19,226.60 is: 26,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.07 : 42,175.72 = 19,226.60 : x
  2. Step 2: Convert to fraction form
    30,575.07/42,175.72 = 19,226.60/x
  3. Step 3: Cross multiply
    30,575.07x = 42,175.72 × 19,226.60
  4. Step 4: Simplify right side
    30,575.07x = 810,895,698.15
  5. Step 5: Solve for x
    x = 810,895,698.15/30,575.07
  6. Step 6: Final answer
    x = 26,521.47

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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.