Home / 28,626.09-39,504.03-15,881.25

Finding the Fourth Proportional to 28,626.09, 39,504.03 and 15,881.25

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Solution

The fourth proportional to 28,626.09, 39,504.03 and 15,881.25 is: 21,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.09 : 39,504.03 = 15,881.25 : x
  2. Step 2: Convert to fraction form
    28,626.09/39,504.03 = 15,881.25/x
  3. Step 3: Cross multiply
    28,626.09x = 39,504.03 × 15,881.25
  4. Step 4: Simplify right side
    28,626.09x = 627,373,376.44
  5. Step 5: Solve for x
    x = 627,373,376.44/28,626.09
  6. Step 6: Final answer
    x = 21,916.14

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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.