Home / 28,909.19-43,357.83-11,133.75

Finding the Fourth Proportional to 28,909.19, 43,357.83 and 11,133.75

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Solution

The fourth proportional to 28,909.19, 43,357.83 and 11,133.75 is: 16,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.19 : 43,357.83 = 11,133.75 : x
  2. Step 2: Convert to fraction form
    28,909.19/43,357.83 = 11,133.75/x
  3. Step 3: Cross multiply
    28,909.19x = 43,357.83 × 11,133.75
  4. Step 4: Simplify right side
    28,909.19x = 482,735,239.76
  5. Step 5: Solve for x
    x = 482,735,239.76/28,909.19
  6. Step 6: Final answer
    x = 16,698.33

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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.