Home / 30,765.45-46,150.66-8,579.05

Finding the Fourth Proportional to 30,765.45, 46,150.66 and 8,579.05

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Solution

The fourth proportional to 30,765.45, 46,150.66 and 8,579.05 is: 12,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.45 : 46,150.66 = 8,579.05 : x
  2. Step 2: Convert to fraction form
    30,765.45/46,150.66 = 8,579.05/x
  3. Step 3: Cross multiply
    30,765.45x = 46,150.66 × 8,579.05
  4. Step 4: Simplify right side
    30,765.45x = 395,928,715.02
  5. Step 5: Solve for x
    x = 395,928,715.02/30,765.45
  6. Step 6: Final answer
    x = 12,869.26

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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.