Home / 38,466.36-57,708.18-12,172.68

Finding the Fourth Proportional to 38,466.36, 57,708.18 and 12,172.68

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Solution

The fourth proportional to 38,466.36, 57,708.18 and 12,172.68 is: 18,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,466.36 : 57,708.18 = 12,172.68 : x
  2. Step 2: Convert to fraction form
    38,466.36/57,708.18 = 12,172.68/x
  3. Step 3: Cross multiply
    38,466.36x = 57,708.18 × 12,172.68
  4. Step 4: Simplify right side
    38,466.36x = 702,463,208.52
  5. Step 5: Solve for x
    x = 702,463,208.52/38,466.36
  6. Step 6: Final answer
    x = 18,261.75

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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.