Home / 34,505.09-47,618.78-19,400.21

Finding the Fourth Proportional to 34,505.09, 47,618.78 and 19,400.21

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Solution

The fourth proportional to 34,505.09, 47,618.78 and 19,400.21 is: 26,773.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,505.09 : 47,618.78 = 19,400.21 : x
  2. Step 2: Convert to fraction form
    34,505.09/47,618.78 = 19,400.21/x
  3. Step 3: Cross multiply
    34,505.09x = 47,618.78 × 19,400.21
  4. Step 4: Simplify right side
    34,505.09x = 923,813,996.85
  5. Step 5: Solve for x
    x = 923,813,996.85/34,505.09
  6. Step 6: Final answer
    x = 26,773.27

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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.