Home / 28,783.43-43,112.64-13,961.19

Finding the Fourth Proportional to 28,783.43, 43,112.64 and 13,961.19

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Solution

The fourth proportional to 28,783.43, 43,112.64 and 13,961.19 is: 20,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.43 : 43,112.64 = 13,961.19 : x
  2. Step 2: Convert to fraction form
    28,783.43/43,112.64 = 13,961.19/x
  3. Step 3: Cross multiply
    28,783.43x = 43,112.64 × 13,961.19
  4. Step 4: Simplify right side
    28,783.43x = 601,903,758.44
  5. Step 5: Solve for x
    x = 601,903,758.44/28,783.43
  6. Step 6: Final answer
    x = 20,911.47

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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.