Home / 28,176.23-38,883.26-15,255.65

Finding the Fourth Proportional to 28,176.23, 38,883.26 and 15,255.65

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Solution

The fourth proportional to 28,176.23, 38,883.26 and 15,255.65 is: 21,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.23 : 38,883.26 = 15,255.65 : x
  2. Step 2: Convert to fraction form
    28,176.23/38,883.26 = 15,255.65/x
  3. Step 3: Cross multiply
    28,176.23x = 38,883.26 × 15,255.65
  4. Step 4: Simplify right side
    28,176.23x = 593,189,134.72
  5. Step 5: Solve for x
    x = 593,189,134.72/28,176.23
  6. Step 6: Final answer
    x = 21,052.83

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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.