Home / 28,740.09-43,110.15-7,963.59

Finding the Fourth Proportional to 28,740.09, 43,110.15 and 7,963.59

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Solution

The fourth proportional to 28,740.09, 43,110.15 and 7,963.59 is: 11,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.09 : 43,110.15 = 7,963.59 : x
  2. Step 2: Convert to fraction form
    28,740.09/43,110.15 = 7,963.59/x
  3. Step 3: Cross multiply
    28,740.09x = 43,110.15 × 7,963.59
  4. Step 4: Simplify right side
    28,740.09x = 343,311,431.75
  5. Step 5: Solve for x
    x = 343,311,431.75/28,740.09
  6. Step 6: Final answer
    x = 11,945.39

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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.