Home / 27,981.74-41,972.61-19,190.00

Finding the Fourth Proportional to 27,981.74, 41,972.61 and 19,190.00

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Solution

The fourth proportional to 27,981.74, 41,972.61 and 19,190.00 is: 28,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.74 : 41,972.61 = 19,190.00 : x
  2. Step 2: Convert to fraction form
    27,981.74/41,972.61 = 19,190.00/x
  3. Step 3: Cross multiply
    27,981.74x = 41,972.61 × 19,190.00
  4. Step 4: Simplify right side
    27,981.74x = 805,454,176.04
  5. Step 5: Solve for x
    x = 805,454,176.04/27,981.74
  6. Step 6: Final answer
    x = 28,785.00

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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.