Home / 28,725.36-43,090.50-7,948.86

Finding the Fourth Proportional to 28,725.36, 43,090.50 and 7,948.86

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Solution

The fourth proportional to 28,725.36, 43,090.50 and 7,948.86 is: 11,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.36 : 43,090.50 = 7,948.86 : x
  2. Step 2: Convert to fraction form
    28,725.36/43,090.50 = 7,948.86/x
  3. Step 3: Cross multiply
    28,725.36x = 43,090.50 × 7,948.86
  4. Step 4: Simplify right side
    28,725.36x = 342,520,351.83
  5. Step 5: Solve for x
    x = 342,520,351.83/28,725.36
  6. Step 6: Final answer
    x = 11,923.97

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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.