Home / 30,647.22-42,297.30-17,219.22

Finding the Fourth Proportional to 30,647.22, 42,297.30 and 17,219.22

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Solution

The fourth proportional to 30,647.22, 42,297.30 and 17,219.22 is: 23,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.22 : 42,297.30 = 17,219.22 : x
  2. Step 2: Convert to fraction form
    30,647.22/42,297.30 = 17,219.22/x
  3. Step 3: Cross multiply
    30,647.22x = 42,297.30 × 17,219.22
  4. Step 4: Simplify right side
    30,647.22x = 728,326,514.11
  5. Step 5: Solve for x
    x = 728,326,514.11/30,647.22
  6. Step 6: Final answer
    x = 23,764.85

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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.