Home / 40,709.38-61,072.83-12,628.87

Finding the Fourth Proportional to 40,709.38, 61,072.83 and 12,628.87

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Solution

The fourth proportional to 40,709.38, 61,072.83 and 12,628.87 is: 18,946.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.38 : 61,072.83 = 12,628.87 : x
  2. Step 2: Convert to fraction form
    40,709.38/61,072.83 = 12,628.87/x
  3. Step 3: Cross multiply
    40,709.38x = 61,072.83 × 12,628.87
  4. Step 4: Simplify right side
    40,709.38x = 771,280,830.60
  5. Step 5: Solve for x
    x = 771,280,830.60/40,709.38
  6. Step 6: Final answer
    x = 18,946.02

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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.