Home / 28,740.12-43,110.90-7,963.56

Finding the Fourth Proportional to 28,740.12, 43,110.90 and 7,963.56

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Solution

The fourth proportional to 28,740.12, 43,110.90 and 7,963.56 is: 11,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.12 : 43,110.90 = 7,963.56 : x
  2. Step 2: Convert to fraction form
    28,740.12/43,110.90 = 7,963.56/x
  3. Step 3: Cross multiply
    28,740.12x = 43,110.90 × 7,963.56
  4. Step 4: Simplify right side
    28,740.12x = 343,316,238.80
  5. Step 5: Solve for x
    x = 343,316,238.80/28,740.12
  6. Step 6: Final answer
    x = 11,945.54

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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.