Home / 38,120.69-57,186.54-14,421.81

Finding the Fourth Proportional to 38,120.69, 57,186.54 and 14,421.81

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Solution

The fourth proportional to 38,120.69, 57,186.54 and 14,421.81 is: 21,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.69 : 57,186.54 = 14,421.81 : x
  2. Step 2: Convert to fraction form
    38,120.69/57,186.54 = 14,421.81/x
  3. Step 3: Cross multiply
    38,120.69x = 57,186.54 × 14,421.81
  4. Step 4: Simplify right side
    38,120.69x = 824,733,414.44
  5. Step 5: Solve for x
    x = 824,733,414.44/38,120.69
  6. Step 6: Final answer
    x = 21,634.80

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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.