Home / 28,610.16-39,486.60-16,680.48

Finding the Fourth Proportional to 28,610.16, 39,486.60 and 16,680.48

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Solution

The fourth proportional to 28,610.16, 39,486.60 and 16,680.48 is: 23,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.16 : 39,486.60 = 16,680.48 : x
  2. Step 2: Convert to fraction form
    28,610.16/39,486.60 = 16,680.48/x
  3. Step 3: Cross multiply
    28,610.16x = 39,486.60 × 16,680.48
  4. Step 4: Simplify right side
    28,610.16x = 658,655,441.57
  5. Step 5: Solve for x
    x = 658,655,441.57/28,610.16
  6. Step 6: Final answer
    x = 23,021.73

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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.