Home / 40,896.70-61,345.05-21,181.30

Finding the Fourth Proportional to 40,896.70, 61,345.05 and 21,181.30

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Solution

The fourth proportional to 40,896.70, 61,345.05 and 21,181.30 is: 31,771.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,896.70 : 61,345.05 = 21,181.30 : x
  2. Step 2: Convert to fraction form
    40,896.70/61,345.05 = 21,181.30/x
  3. Step 3: Cross multiply
    40,896.70x = 61,345.05 × 21,181.30
  4. Step 4: Simplify right side
    40,896.70x = 1,299,367,907.57
  5. Step 5: Solve for x
    x = 1,299,367,907.57/40,896.70
  6. Step 6: Final answer
    x = 31,771.95

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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.