Home / 30,190.60-45,226.98-19,770.76

Finding the Fourth Proportional to 30,190.60, 45,226.98 and 19,770.76

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Solution

The fourth proportional to 30,190.60, 45,226.98 and 19,770.76 is: 29,617.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.60 : 45,226.98 = 19,770.76 : x
  2. Step 2: Convert to fraction form
    30,190.60/45,226.98 = 19,770.76/x
  3. Step 3: Cross multiply
    30,190.60x = 45,226.98 × 19,770.76
  4. Step 4: Simplify right side
    30,190.60x = 894,171,767.10
  5. Step 5: Solve for x
    x = 894,171,767.10/30,190.60
  6. Step 6: Final answer
    x = 29,617.56

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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.