Home / 30,578.26-45,862.46-8,386.48

Finding the Fourth Proportional to 30,578.26, 45,862.46 and 8,386.48

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Solution

The fourth proportional to 30,578.26, 45,862.46 and 8,386.48 is: 12,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.26 : 45,862.46 = 8,386.48 : x
  2. Step 2: Convert to fraction form
    30,578.26/45,862.46 = 8,386.48/x
  3. Step 3: Cross multiply
    30,578.26x = 45,862.46 × 8,386.48
  4. Step 4: Simplify right side
    30,578.26x = 384,624,603.54
  5. Step 5: Solve for x
    x = 384,624,603.54/30,578.26
  6. Step 6: Final answer
    x = 12,578.37

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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.