Home / 30,270.14-45,404.75-13,618.41

Finding the Fourth Proportional to 30,270.14, 45,404.75 and 13,618.41

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Solution

The fourth proportional to 30,270.14, 45,404.75 and 13,618.41 is: 20,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.14 : 45,404.75 = 13,618.41 : x
  2. Step 2: Convert to fraction form
    30,270.14/45,404.75 = 13,618.41/x
  3. Step 3: Cross multiply
    30,270.14x = 45,404.75 × 13,618.41
  4. Step 4: Simplify right side
    30,270.14x = 618,340,467.40
  5. Step 5: Solve for x
    x = 618,340,467.40/30,270.14
  6. Step 6: Final answer
    x = 20,427.41

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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.