Home / 28,677.31-43,015.06-7,900.63

Finding the Fourth Proportional to 28,677.31, 43,015.06 and 7,900.63

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Solution

The fourth proportional to 28,677.31, 43,015.06 and 7,900.63 is: 11,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.31 : 43,015.06 = 7,900.63 : x
  2. Step 2: Convert to fraction form
    28,677.31/43,015.06 = 7,900.63/x
  3. Step 3: Cross multiply
    28,677.31x = 43,015.06 × 7,900.63
  4. Step 4: Simplify right side
    28,677.31x = 339,846,073.49
  5. Step 5: Solve for x
    x = 339,846,073.49/28,677.31
  6. Step 6: Final answer
    x = 11,850.70

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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.