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Finding the Fourth Proportional to 28,743.21, 43,119.39 and 9,017.10

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Solution

The fourth proportional to 28,743.21, 43,119.39 and 9,017.10 is: 13,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.21 : 43,119.39 = 9,017.10 : x
  2. Step 2: Convert to fraction form
    28,743.21/43,119.39 = 9,017.10/x
  3. Step 3: Cross multiply
    28,743.21x = 43,119.39 × 9,017.10
  4. Step 4: Simplify right side
    28,743.21x = 388,811,851.57
  5. Step 5: Solve for x
    x = 388,811,851.57/28,743.21
  6. Step 6: Final answer
    x = 13,527.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.