Home / 30,633.40-45,939.30-10,912.60

Finding the Fourth Proportional to 30,633.40, 45,939.30 and 10,912.60

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Solution

The fourth proportional to 30,633.40, 45,939.30 and 10,912.60 is: 16,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,633.40 : 45,939.30 = 10,912.60 : x
  2. Step 2: Convert to fraction form
    30,633.40/45,939.30 = 10,912.60/x
  3. Step 3: Cross multiply
    30,633.40x = 45,939.30 × 10,912.60
  4. Step 4: Simplify right side
    30,633.40x = 501,317,205.18
  5. Step 5: Solve for x
    x = 501,317,205.18/30,633.40
  6. Step 6: Final answer
    x = 16,365.05

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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.