Home / 28,543.65-39,389.27-15,797.37

Finding the Fourth Proportional to 28,543.65, 39,389.27 and 15,797.37

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Solution

The fourth proportional to 28,543.65, 39,389.27 and 15,797.37 is: 21,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.65 : 39,389.27 = 15,797.37 : x
  2. Step 2: Convert to fraction form
    28,543.65/39,389.27 = 15,797.37/x
  3. Step 3: Cross multiply
    28,543.65x = 39,389.27 × 15,797.37
  4. Step 4: Simplify right side
    28,543.65x = 622,246,872.22
  5. Step 5: Solve for x
    x = 622,246,872.22/28,543.65
  6. Step 6: Final answer
    x = 21,799.84

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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.