Home / 49,638.47-68,477.22-28,405.13

Finding the Fourth Proportional to 49,638.47, 68,477.22 and 28,405.13

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Solution

The fourth proportional to 49,638.47, 68,477.22 and 28,405.13 is: 39,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,638.47 : 68,477.22 = 28,405.13 : x
  2. Step 2: Convert to fraction form
    49,638.47/68,477.22 = 28,405.13/x
  3. Step 3: Cross multiply
    49,638.47x = 68,477.22 × 28,405.13
  4. Step 4: Simplify right side
    49,638.47x = 1,945,103,993.75
  5. Step 5: Solve for x
    x = 1,945,103,993.75/49,638.47
  6. Step 6: Final answer
    x = 39,185.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.