Home / 30,628.60-45,921.18-11,892.85

Finding the Fourth Proportional to 30,628.60, 45,921.18 and 11,892.85

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Solution

The fourth proportional to 30,628.60, 45,921.18 and 11,892.85 is: 17,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628.60 : 45,921.18 = 11,892.85 : x
  2. Step 2: Convert to fraction form
    30,628.60/45,921.18 = 11,892.85/x
  3. Step 3: Cross multiply
    30,628.60x = 45,921.18 × 11,892.85
  4. Step 4: Simplify right side
    30,628.60x = 546,133,705.56
  5. Step 5: Solve for x
    x = 546,133,705.56/30,628.60
  6. Step 6: Final answer
    x = 17,830.84

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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.