Home / 28,889.82-39,867.66-18,288.18

Finding the Fourth Proportional to 28,889.82, 39,867.66 and 18,288.18

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Solution

The fourth proportional to 28,889.82, 39,867.66 and 18,288.18 is: 25,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.82 : 39,867.66 = 18,288.18 : x
  2. Step 2: Convert to fraction form
    28,889.82/39,867.66 = 18,288.18/x
  3. Step 3: Cross multiply
    28,889.82x = 39,867.66 × 18,288.18
  4. Step 4: Simplify right side
    28,889.82x = 729,106,942.26
  5. Step 5: Solve for x
    x = 729,106,942.26/28,889.82
  6. Step 6: Final answer
    x = 25,237.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.