Home / 30,219.57-41,675.12-18,885.44

Finding the Fourth Proportional to 30,219.57, 41,675.12 and 18,885.44

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Solution

The fourth proportional to 30,219.57, 41,675.12 and 18,885.44 is: 26,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.57 : 41,675.12 = 18,885.44 : x
  2. Step 2: Convert to fraction form
    30,219.57/41,675.12 = 18,885.44/x
  3. Step 3: Cross multiply
    30,219.57x = 41,675.12 × 18,885.44
  4. Step 4: Simplify right side
    30,219.57x = 787,052,978.25
  5. Step 5: Solve for x
    x = 787,052,978.25/30,219.57
  6. Step 6: Final answer
    x = 26,044.48

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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.