Home / 40,671.81-61,008.26-20,940.21

Finding the Fourth Proportional to 40,671.81, 61,008.26 and 20,940.21

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Solution

The fourth proportional to 40,671.81, 61,008.26 and 20,940.21 is: 31,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,671.81 : 61,008.26 = 20,940.21 : x
  2. Step 2: Convert to fraction form
    40,671.81/61,008.26 = 20,940.21/x
  3. Step 3: Cross multiply
    40,671.81x = 61,008.26 × 20,940.21
  4. Step 4: Simplify right side
    40,671.81x = 1,277,525,671.43
  5. Step 5: Solve for x
    x = 1,277,525,671.43/40,671.81
  6. Step 6: Final answer
    x = 31,410.59

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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.