Home / 28,905.23-43,360.73-7,845.60

Finding the Fourth Proportional to 28,905.23, 43,360.73 and 7,845.60

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Solution

The fourth proportional to 28,905.23, 43,360.73 and 7,845.60 is: 11,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.23 : 43,360.73 = 7,845.60 : x
  2. Step 2: Convert to fraction form
    28,905.23/43,360.73 = 7,845.60/x
  3. Step 3: Cross multiply
    28,905.23x = 43,360.73 × 7,845.60
  4. Step 4: Simplify right side
    28,905.23x = 340,190,943.29
  5. Step 5: Solve for x
    x = 340,190,943.29/28,905.23
  6. Step 6: Final answer
    x = 11,769.18

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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.