Home / 28,034.18-38,685.78-15,933.08

Finding the Fourth Proportional to 28,034.18, 38,685.78 and 15,933.08

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Solution

The fourth proportional to 28,034.18, 38,685.78 and 15,933.08 is: 21,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.18 : 38,685.78 = 15,933.08 : x
  2. Step 2: Convert to fraction form
    28,034.18/38,685.78 = 15,933.08/x
  3. Step 3: Cross multiply
    28,034.18x = 38,685.78 × 15,933.08
  4. Step 4: Simplify right side
    28,034.18x = 616,383,627.60
  5. Step 5: Solve for x
    x = 616,383,627.60/28,034.18
  6. Step 6: Final answer
    x = 21,986.86

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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.