Home / 30,350.28-45,530.61-9,289.80

Finding the Fourth Proportional to 30,350.28, 45,530.61 and 9,289.80

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Solution

The fourth proportional to 30,350.28, 45,530.61 and 9,289.80 is: 13,936.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.28 : 45,530.61 = 9,289.80 : x
  2. Step 2: Convert to fraction form
    30,350.28/45,530.61 = 9,289.80/x
  3. Step 3: Cross multiply
    30,350.28x = 45,530.61 × 9,289.80
  4. Step 4: Simplify right side
    30,350.28x = 422,970,260.78
  5. Step 5: Solve for x
    x = 422,970,260.78/30,350.28
  6. Step 6: Final answer
    x = 13,936.29

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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.