Home / 27,177.18-40,828.32-19,190.40

Finding the Fourth Proportional to 27,177.18, 40,828.32 and 19,190.40

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Solution

The fourth proportional to 27,177.18, 40,828.32 and 19,190.40 is: 28,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,177.18 : 40,828.32 = 19,190.40 : x
  2. Step 2: Convert to fraction form
    27,177.18/40,828.32 = 19,190.40/x
  3. Step 3: Cross multiply
    27,177.18x = 40,828.32 × 19,190.40
  4. Step 4: Simplify right side
    27,177.18x = 783,511,792.13
  5. Step 5: Solve for x
    x = 783,511,792.13/27,177.18
  6. Step 6: Final answer
    x = 28,829.77

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1.5x scale

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.