Home / 28,707.75-39,620.41-16,132.50

Finding the Fourth Proportional to 28,707.75, 39,620.41 and 16,132.50

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Solution

The fourth proportional to 28,707.75, 39,620.41 and 16,132.50 is: 22,264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.75 : 39,620.41 = 16,132.50 : x
  2. Step 2: Convert to fraction form
    28,707.75/39,620.41 = 16,132.50/x
  3. Step 3: Cross multiply
    28,707.75x = 39,620.41 × 16,132.50
  4. Step 4: Simplify right side
    28,707.75x = 639,176,264.33
  5. Step 5: Solve for x
    x = 639,176,264.33/28,707.75
  6. Step 6: Final answer
    x = 22,264.94

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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.