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Finding the Fourth Proportional to 28,627.87, 39,506.87 and 17,295.79

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Solution

The fourth proportional to 28,627.87, 39,506.87 and 17,295.79 is: 23,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.87 : 39,506.87 = 17,295.79 : x
  2. Step 2: Convert to fraction form
    28,627.87/39,506.87 = 17,295.79/x
  3. Step 3: Cross multiply
    28,627.87x = 39,506.87 × 17,295.79
  4. Step 4: Simplify right side
    28,627.87x = 683,302,527.08
  5. Step 5: Solve for x
    x = 683,302,527.08/28,627.87
  6. Step 6: Final answer
    x = 23,868.44

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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.