Home / 30,122.46-45,188.85-10,396.39

Finding the Fourth Proportional to 30,122.46, 45,188.85 and 10,396.39

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Solution

The fourth proportional to 30,122.46, 45,188.85 and 10,396.39 is: 15,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.46 : 45,188.85 = 10,396.39 : x
  2. Step 2: Convert to fraction form
    30,122.46/45,188.85 = 10,396.39/x
  3. Step 3: Cross multiply
    30,122.46x = 45,188.85 × 10,396.39
  4. Step 4: Simplify right side
    30,122.46x = 469,800,908.25
  5. Step 5: Solve for x
    x = 469,800,908.25/30,122.46
  6. Step 6: Final answer
    x = 15,596.37

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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.