Home / 20,696.86-28,549.56-15,025

Finding the Fourth Proportional to 20,696.86, 28,549.56 and 15,025

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Solution

The fourth proportional to 20,696.86, 28,549.56 and 15,025 is: 20,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.86 : 28,549.56 = 15,025 : x
  2. Step 2: Convert to fraction form
    20,696.86/28,549.56 = 15,025/x
  3. Step 3: Cross multiply
    20,696.86x = 28,549.56 × 15,025
  4. Step 4: Simplify right side
    20,696.86x = 428,957,139
  5. Step 5: Solve for x
    x = 428,957,139/20,696.86
  6. Step 6: Final answer
    x = 20,725.71

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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.