Home / 30,579.68-45,874.08-10,856.58

Finding the Fourth Proportional to 30,579.68, 45,874.08 and 10,856.58

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Solution

The fourth proportional to 30,579.68, 45,874.08 and 10,856.58 is: 16,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.68 : 45,874.08 = 10,856.58 : x
  2. Step 2: Convert to fraction form
    30,579.68/45,874.08 = 10,856.58/x
  3. Step 3: Cross multiply
    30,579.68x = 45,874.08 × 10,856.58
  4. Step 4: Simplify right side
    30,579.68x = 498,035,619.45
  5. Step 5: Solve for x
    x = 498,035,619.45/30,579.68
  6. Step 6: Final answer
    x = 16,286.49

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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.