Home / 27,280.79-40,912.97-17,920.43

Finding the Fourth Proportional to 27,280.79, 40,912.97 and 17,920.43

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Solution

The fourth proportional to 27,280.79, 40,912.97 and 17,920.43 is: 26,875.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,280.79 : 40,912.97 = 17,920.43 : x
  2. Step 2: Convert to fraction form
    27,280.79/40,912.97 = 17,920.43/x
  3. Step 3: Cross multiply
    27,280.79x = 40,912.97 × 17,920.43
  4. Step 4: Simplify right side
    27,280.79x = 733,177,720.81
  5. Step 5: Solve for x
    x = 733,177,720.81/27,280.79
  6. Step 6: Final answer
    x = 26,875.24

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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.