Home / 30,329.87-45,520.37-12,812.27

Finding the Fourth Proportional to 30,329.87, 45,520.37 and 12,812.27

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Solution

The fourth proportional to 30,329.87, 45,520.37 and 12,812.27 is: 19,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329.87 : 45,520.37 = 12,812.27 : x
  2. Step 2: Convert to fraction form
    30,329.87/45,520.37 = 12,812.27/x
  3. Step 3: Cross multiply
    30,329.87x = 45,520.37 × 12,812.27
  4. Step 4: Simplify right side
    30,329.87x = 583,219,206.88
  5. Step 5: Solve for x
    x = 583,219,206.88/30,329.87
  6. Step 6: Final answer
    x = 19,229.20

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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.