Home / 20,344.88-30,512.64-7,866.56

Finding the Fourth Proportional to 20,344.88, 30,512.64 and 7,866.56

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Solution

The fourth proportional to 20,344.88, 30,512.64 and 7,866.56 is: 11,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.88 : 30,512.64 = 7,866.56 : x
  2. Step 2: Convert to fraction form
    20,344.88/30,512.64 = 7,866.56/x
  3. Step 3: Cross multiply
    20,344.88x = 30,512.64 × 7,866.56
  4. Step 4: Simplify right side
    20,344.88x = 240,029,513.32
  5. Step 5: Solve for x
    x = 240,029,513.32/20,344.88
  6. Step 6: Final answer
    x = 11,798.03

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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.