Home / 28,908.14-43,362.06-9,188.20

Finding the Fourth Proportional to 28,908.14, 43,362.06 and 9,188.20

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Solution

The fourth proportional to 28,908.14, 43,362.06 and 9,188.20 is: 13,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.14 : 43,362.06 = 9,188.20 : x
  2. Step 2: Convert to fraction form
    28,908.14/43,362.06 = 9,188.20/x
  3. Step 3: Cross multiply
    28,908.14x = 43,362.06 × 9,188.20
  4. Step 4: Simplify right side
    28,908.14x = 398,419,279.69
  5. Step 5: Solve for x
    x = 398,419,279.69/28,908.14
  6. Step 6: Final answer
    x = 13,782.25

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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.