Home / 28,805.96-43,216.50-9,085.16

Finding the Fourth Proportional to 28,805.96, 43,216.50 and 9,085.16

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Solution

The fourth proportional to 28,805.96, 43,216.50 and 9,085.16 is: 13,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.96 : 43,216.50 = 9,085.16 : x
  2. Step 2: Convert to fraction form
    28,805.96/43,216.50 = 9,085.16/x
  3. Step 3: Cross multiply
    28,805.96x = 43,216.50 × 9,085.16
  4. Step 4: Simplify right side
    28,805.96x = 392,628,817.14
  5. Step 5: Solve for x
    x = 392,628,817.14/28,805.96
  6. Step 6: Final answer
    x = 13,630.12

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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.