Home / 38,389.80-57,584.70-12,097.20

Finding the Fourth Proportional to 38,389.80, 57,584.70 and 12,097.20

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Solution

The fourth proportional to 38,389.80, 57,584.70 and 12,097.20 is: 18,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.80 : 57,584.70 = 12,097.20 : x
  2. Step 2: Convert to fraction form
    38,389.80/57,584.70 = 12,097.20/x
  3. Step 3: Cross multiply
    38,389.80x = 57,584.70 × 12,097.20
  4. Step 4: Simplify right side
    38,389.80x = 696,613,632.84
  5. Step 5: Solve for x
    x = 696,613,632.84/38,389.80
  6. Step 6: Final answer
    x = 18,145.80

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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.