Home / 28,442.58-39,251.18-15,696.35

Finding the Fourth Proportional to 28,442.58, 39,251.18 and 15,696.35

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Solution

The fourth proportional to 28,442.58, 39,251.18 and 15,696.35 is: 21,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.58 : 39,251.18 = 15,696.35 : x
  2. Step 2: Convert to fraction form
    28,442.58/39,251.18 = 15,696.35/x
  3. Step 3: Cross multiply
    28,442.58x = 39,251.18 × 15,696.35
  4. Step 4: Simplify right side
    28,442.58x = 616,100,249.37
  5. Step 5: Solve for x
    x = 616,100,249.37/28,442.58
  6. Step 6: Final answer
    x = 21,661.20

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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.