Home / 20,671.66-31,004.52-5,881.60

Finding the Fourth Proportional to 20,671.66, 31,004.52 and 5,881.60

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Solution

The fourth proportional to 20,671.66, 31,004.52 and 5,881.60 is: 8,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.66 : 31,004.52 = 5,881.60 : x
  2. Step 2: Convert to fraction form
    20,671.66/31,004.52 = 5,881.60/x
  3. Step 3: Cross multiply
    20,671.66x = 31,004.52 × 5,881.60
  4. Step 4: Simplify right side
    20,671.66x = 182,356,184.83
  5. Step 5: Solve for x
    x = 182,356,184.83/20,671.66
  6. Step 6: Final answer
    x = 8,821.55

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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.