Home / 28,677.87-43,013.48-7,619.57

Finding the Fourth Proportional to 28,677.87, 43,013.48 and 7,619.57

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Solution

The fourth proportional to 28,677.87, 43,013.48 and 7,619.57 is: 11,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.87 : 43,013.48 = 7,619.57 : x
  2. Step 2: Convert to fraction form
    28,677.87/43,013.48 = 7,619.57/x
  3. Step 3: Cross multiply
    28,677.87x = 43,013.48 × 7,619.57
  4. Step 4: Simplify right side
    28,677.87x = 327,743,968.64
  5. Step 5: Solve for x
    x = 327,743,968.64/28,677.87
  6. Step 6: Final answer
    x = 11,428.46

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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.