Home / 28,735.84-43,105.38-9,013.96

Finding the Fourth Proportional to 28,735.84, 43,105.38 and 9,013.96

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Solution

The fourth proportional to 28,735.84, 43,105.38 and 9,013.96 is: 13,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.84 : 43,105.38 = 9,013.96 : x
  2. Step 2: Convert to fraction form
    28,735.84/43,105.38 = 9,013.96/x
  3. Step 3: Cross multiply
    28,735.84x = 43,105.38 × 9,013.96
  4. Step 4: Simplify right side
    28,735.84x = 388,550,171.10
  5. Step 5: Solve for x
    x = 388,550,171.10/28,735.84
  6. Step 6: Final answer
    x = 13,521.45

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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.