Home / 28,003.14-38,644.25-15,257.03

Finding the Fourth Proportional to 28,003.14, 38,644.25 and 15,257.03

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Solution

The fourth proportional to 28,003.14, 38,644.25 and 15,257.03 is: 21,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.14 : 38,644.25 = 15,257.03 : x
  2. Step 2: Convert to fraction form
    28,003.14/38,644.25 = 15,257.03/x
  3. Step 3: Cross multiply
    28,003.14x = 38,644.25 × 15,257.03
  4. Step 4: Simplify right side
    28,003.14x = 589,596,212.07
  5. Step 5: Solve for x
    x = 589,596,212.07/28,003.14
  6. Step 6: Final answer
    x = 21,054.65

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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.