Home / 28,796.48-43,158-12,984.56

Finding the Fourth Proportional to 28,796.48, 43,158 and 12,984.56

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Solution

The fourth proportional to 28,796.48, 43,158 and 12,984.56 is: 19,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.48 : 43,158 = 12,984.56 : x
  2. Step 2: Convert to fraction form
    28,796.48/43,158 = 12,984.56/x
  3. Step 3: Cross multiply
    28,796.48x = 43,158 × 12,984.56
  4. Step 4: Simplify right side
    28,796.48x = 560,387,640.48
  5. Step 5: Solve for x
    x = 560,387,640.48/28,796.48
  6. Step 6: Final answer
    x = 19,460.28

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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.