Home / 28,874.38-39,846.64-15,626.38

Finding the Fourth Proportional to 28,874.38, 39,846.64 and 15,626.38

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Solution

The fourth proportional to 28,874.38, 39,846.64 and 15,626.38 is: 21,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.38 : 39,846.64 = 15,626.38 : x
  2. Step 2: Convert to fraction form
    28,874.38/39,846.64 = 15,626.38/x
  3. Step 3: Cross multiply
    28,874.38x = 39,846.64 × 15,626.38
  4. Step 4: Simplify right side
    28,874.38x = 622,658,539.13
  5. Step 5: Solve for x
    x = 622,658,539.13/28,874.38
  6. Step 6: Final answer
    x = 21,564.40

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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.