Home / 20,146.49-30,207.51-7,667.36

Finding the Fourth Proportional to 20,146.49, 30,207.51 and 7,667.36

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Solution

The fourth proportional to 20,146.49, 30,207.51 and 7,667.36 is: 11,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.49 : 30,207.51 = 7,667.36 : x
  2. Step 2: Convert to fraction form
    20,146.49/30,207.51 = 7,667.36/x
  3. Step 3: Cross multiply
    20,146.49x = 30,207.51 × 7,667.36
  4. Step 4: Simplify right side
    20,146.49x = 231,611,853.87
  5. Step 5: Solve for x
    x = 231,611,853.87/20,146.49
  6. Step 6: Final answer
    x = 11,496.39

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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.