Home / 30,245.90-45,329.42-15,442.34

Finding the Fourth Proportional to 30,245.90, 45,329.42 and 15,442.34

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Solution

The fourth proportional to 30,245.90, 45,329.42 and 15,442.34 is: 23,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.90 : 45,329.42 = 15,442.34 : x
  2. Step 2: Convert to fraction form
    30,245.90/45,329.42 = 15,442.34/x
  3. Step 3: Cross multiply
    30,245.90x = 45,329.42 × 15,442.34
  4. Step 4: Simplify right side
    30,245.90x = 699,992,127.60
  5. Step 5: Solve for x
    x = 699,992,127.60/30,245.90
  6. Step 6: Final answer
    x = 23,143.38

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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.