Home / 30,334.40-45,501.60-19,836.80

Finding the Fourth Proportional to 30,334.40, 45,501.60 and 19,836.80

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Solution

The fourth proportional to 30,334.40, 45,501.60 and 19,836.80 is: 29,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,334.40 : 45,501.60 = 19,836.80 : x
  2. Step 2: Convert to fraction form
    30,334.40/45,501.60 = 19,836.80/x
  3. Step 3: Cross multiply
    30,334.40x = 45,501.60 × 19,836.80
  4. Step 4: Simplify right side
    30,334.40x = 902,606,138.88
  5. Step 5: Solve for x
    x = 902,606,138.88/30,334.40
  6. Step 6: Final answer
    x = 29,755.20

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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.