Home / 28,960.74-39,945.21-26,578.41

Finding the Fourth Proportional to 28,960.74, 39,945.21 and 26,578.41

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Solution

The fourth proportional to 28,960.74, 39,945.21 and 26,578.41 is: 36,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.74 : 39,945.21 = 26,578.41 : x
  2. Step 2: Convert to fraction form
    28,960.74/39,945.21 = 26,578.41/x
  3. Step 3: Cross multiply
    28,960.74x = 39,945.21 × 26,578.41
  4. Step 4: Simplify right side
    28,960.74x = 1,061,680,168.92
  5. Step 5: Solve for x
    x = 1,061,680,168.92/28,960.74
  6. Step 6: Final answer
    x = 36,659.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.