Home / 49,638.38-68,503.58-28,420.82

Finding the Fourth Proportional to 49,638.38, 68,503.58 and 28,420.82

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Solution

The fourth proportional to 49,638.38, 68,503.58 and 28,420.82 is: 39,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,638.38 : 68,503.58 = 28,420.82 : x
  2. Step 2: Convert to fraction form
    49,638.38/68,503.58 = 28,420.82/x
  3. Step 3: Cross multiply
    49,638.38x = 68,503.58 × 28,420.82
  4. Step 4: Simplify right side
    49,638.38x = 1,946,927,916.54
  5. Step 5: Solve for x
    x = 1,946,927,916.54/49,638.38
  6. Step 6: Final answer
    x = 39,222.23

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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.