Home / 28,609.88-39,481.11-16,510.28

Finding the Fourth Proportional to 28,609.88, 39,481.11 and 16,510.28

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Solution

The fourth proportional to 28,609.88, 39,481.11 and 16,510.28 is: 22,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.88 : 39,481.11 = 16,510.28 : x
  2. Step 2: Convert to fraction form
    28,609.88/39,481.11 = 16,510.28/x
  3. Step 3: Cross multiply
    28,609.88x = 39,481.11 × 16,510.28
  4. Step 4: Simplify right side
    28,609.88x = 651,844,180.81
  5. Step 5: Solve for x
    x = 651,844,180.81/28,609.88
  6. Step 6: Final answer
    x = 22,783.88

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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.