Home / 20,252.89-30,378.30-7,104.25

Finding the Fourth Proportional to 20,252.89, 30,378.30 and 7,104.25

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Solution

The fourth proportional to 20,252.89, 30,378.30 and 7,104.25 is: 10,656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.89 : 30,378.30 = 7,104.25 : x
  2. Step 2: Convert to fraction form
    20,252.89/30,378.30 = 7,104.25/x
  3. Step 3: Cross multiply
    20,252.89x = 30,378.30 × 7,104.25
  4. Step 4: Simplify right side
    20,252.89x = 215,815,037.78
  5. Step 5: Solve for x
    x = 215,815,037.78/20,252.89
  6. Step 6: Final answer
    x = 10,656.01

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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.