Home / 28,703.06-43,083.78-20,392.46

Finding the Fourth Proportional to 28,703.06, 43,083.78 and 20,392.46

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Solution

The fourth proportional to 28,703.06, 43,083.78 and 20,392.46 is: 30,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.06 : 43,083.78 = 20,392.46 : x
  2. Step 2: Convert to fraction form
    28,703.06/43,083.78 = 20,392.46/x
  3. Step 3: Cross multiply
    28,703.06x = 43,083.78 × 20,392.46
  4. Step 4: Simplify right side
    28,703.06x = 878,584,260.30
  5. Step 5: Solve for x
    x = 878,584,260.30/28,703.06
  6. Step 6: Final answer
    x = 30,609.43

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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.