Home / 30,104.20-45,156.30-19,606.60

Finding the Fourth Proportional to 30,104.20, 45,156.30 and 19,606.60

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Solution

The fourth proportional to 30,104.20, 45,156.30 and 19,606.60 is: 29,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,104.20 : 45,156.30 = 19,606.60 : x
  2. Step 2: Convert to fraction form
    30,104.20/45,156.30 = 19,606.60/x
  3. Step 3: Cross multiply
    30,104.20x = 45,156.30 × 19,606.60
  4. Step 4: Simplify right side
    30,104.20x = 885,361,511.58
  5. Step 5: Solve for x
    x = 885,361,511.58/30,104.20
  6. Step 6: Final answer
    x = 29,409.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.