Home / 27,930.40-41,830.80-19,117.60

Finding the Fourth Proportional to 27,930.40, 41,830.80 and 19,117.60

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Solution

The fourth proportional to 27,930.40, 41,830.80 and 19,117.60 is: 28,632.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.40 : 41,830.80 = 19,117.60 : x
  2. Step 2: Convert to fraction form
    27,930.40/41,830.80 = 19,117.60/x
  3. Step 3: Cross multiply
    27,930.40x = 41,830.80 × 19,117.60
  4. Step 4: Simplify right side
    27,930.40x = 799,704,502.08
  5. Step 5: Solve for x
    x = 799,704,502.08/27,930.40
  6. Step 6: Final answer
    x = 28,632.05

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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.