Home / 36,948.48-55,440-21,379.20

Finding the Fourth Proportional to 36,948.48, 55,440 and 21,379.20

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Solution

The fourth proportional to 36,948.48, 55,440 and 21,379.20 is: 32,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,948.48 : 55,440 = 21,379.20 : x
  2. Step 2: Convert to fraction form
    36,948.48/55,440 = 21,379.20/x
  3. Step 3: Cross multiply
    36,948.48x = 55,440 × 21,379.20
  4. Step 4: Simplify right side
    36,948.48x = 1,185,262,848
  5. Step 5: Solve for x
    x = 1,185,262,848/36,948.48
  6. Step 6: Final answer
    x = 32,078.80

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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.