Home / 30,579.93-45,874.47-10,856.84

Finding the Fourth Proportional to 30,579.93, 45,874.47 and 10,856.84

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Solution

The fourth proportional to 30,579.93, 45,874.47 and 10,856.84 is: 16,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.93 : 45,874.47 = 10,856.84 : x
  2. Step 2: Convert to fraction form
    30,579.93/45,874.47 = 10,856.84/x
  3. Step 3: Cross multiply
    30,579.93x = 45,874.47 × 10,856.84
  4. Step 4: Simplify right side
    30,579.93x = 498,051,551.50
  5. Step 5: Solve for x
    x = 498,051,551.50/30,579.93
  6. Step 6: Final answer
    x = 16,286.88

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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.