Home / 30,231.42-45,351.09-10,511.46

Finding the Fourth Proportional to 30,231.42, 45,351.09 and 10,511.46

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Solution

The fourth proportional to 30,231.42, 45,351.09 and 10,511.46 is: 15,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.42 : 45,351.09 = 10,511.46 : x
  2. Step 2: Convert to fraction form
    30,231.42/45,351.09 = 10,511.46/x
  3. Step 3: Cross multiply
    30,231.42x = 45,351.09 × 10,511.46
  4. Step 4: Simplify right side
    30,231.42x = 476,706,168.49
  5. Step 5: Solve for x
    x = 476,706,168.49/30,231.42
  6. Step 6: Final answer
    x = 15,768.57

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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.