Home / 28,227.96-38,955.30-15,481.65

Finding the Fourth Proportional to 28,227.96, 38,955.30 and 15,481.65

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Solution

The fourth proportional to 28,227.96, 38,955.30 and 15,481.65 is: 21,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.96 : 38,955.30 = 15,481.65 : x
  2. Step 2: Convert to fraction form
    28,227.96/38,955.30 = 15,481.65/x
  3. Step 3: Cross multiply
    28,227.96x = 38,955.30 × 15,481.65
  4. Step 4: Simplify right side
    28,227.96x = 603,092,320.25
  5. Step 5: Solve for x
    x = 603,092,320.25/28,227.96
  6. Step 6: Final answer
    x = 21,365.07

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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.