Home / 28,677.60-43,015.28-7,900.56

Finding the Fourth Proportional to 28,677.60, 43,015.28 and 7,900.56

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Solution

The fourth proportional to 28,677.60, 43,015.28 and 7,900.56 is: 11,850.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.60 : 43,015.28 = 7,900.56 : x
  2. Step 2: Convert to fraction form
    28,677.60/43,015.28 = 7,900.56/x
  3. Step 3: Cross multiply
    28,677.60x = 43,015.28 × 7,900.56
  4. Step 4: Simplify right side
    28,677.60x = 339,844,800.56
  5. Step 5: Solve for x
    x = 339,844,800.56/28,677.60
  6. Step 6: Final answer
    x = 11,850.53

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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.