Home / 30,647.62-42,293.88-17,219.44

Finding the Fourth Proportional to 30,647.62, 42,293.88 and 17,219.44

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Solution

The fourth proportional to 30,647.62, 42,293.88 and 17,219.44 is: 23,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.62 : 42,293.88 = 17,219.44 : x
  2. Step 2: Convert to fraction form
    30,647.62/42,293.88 = 17,219.44/x
  3. Step 3: Cross multiply
    30,647.62x = 42,293.88 × 17,219.44
  4. Step 4: Simplify right side
    30,647.62x = 728,276,929.03
  5. Step 5: Solve for x
    x = 728,276,929.03/30,647.62
  6. Step 6: Final answer
    x = 23,762.92

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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.