Home / 28,055.81-38,717.84-15,481.37

Finding the Fourth Proportional to 28,055.81, 38,717.84 and 15,481.37

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Solution

The fourth proportional to 28,055.81, 38,717.84 and 15,481.37 is: 21,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.81 : 38,717.84 = 15,481.37 : x
  2. Step 2: Convert to fraction form
    28,055.81/38,717.84 = 15,481.37/x
  3. Step 3: Cross multiply
    28,055.81x = 38,717.84 × 15,481.37
  4. Step 4: Simplify right side
    28,055.81x = 599,405,226.03
  5. Step 5: Solve for x
    x = 599,405,226.03/28,055.81
  6. Step 6: Final answer
    x = 21,364.74

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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.