Home / 39,927.57-55,098.18-22,920

Finding the Fourth Proportional to 39,927.57, 55,098.18 and 22,920

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Solution

The fourth proportional to 39,927.57, 55,098.18 and 22,920 is: 31,628.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,927.57 : 55,098.18 = 22,920 : x
  2. Step 2: Convert to fraction form
    39,927.57/55,098.18 = 22,920/x
  3. Step 3: Cross multiply
    39,927.57x = 55,098.18 × 22,920
  4. Step 4: Simplify right side
    39,927.57x = 1,262,850,285.60
  5. Step 5: Solve for x
    x = 1,262,850,285.60/39,927.57
  6. Step 6: Final answer
    x = 31,628.53

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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.