Home / 28,677.25-43,015.88-7,900.75

Finding the Fourth Proportional to 28,677.25, 43,015.88 and 7,900.75

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Solution

The fourth proportional to 28,677.25, 43,015.88 and 7,900.75 is: 11,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.25 : 43,015.88 = 7,900.75 : x
  2. Step 2: Convert to fraction form
    28,677.25/43,015.88 = 7,900.75/x
  3. Step 3: Cross multiply
    28,677.25x = 43,015.88 × 7,900.75
  4. Step 4: Simplify right side
    28,677.25x = 339,857,674.41
  5. Step 5: Solve for x
    x = 339,857,674.41/28,677.25
  6. Step 6: Final answer
    x = 11,851.13

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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.