Home / 28,432.82-39,224.60-16,489.23

Finding the Fourth Proportional to 28,432.82, 39,224.60 and 16,489.23

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Solution

The fourth proportional to 28,432.82, 39,224.60 and 16,489.23 is: 22,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.82 : 39,224.60 = 16,489.23 : x
  2. Step 2: Convert to fraction form
    28,432.82/39,224.60 = 16,489.23/x
  3. Step 3: Cross multiply
    28,432.82x = 39,224.60 × 16,489.23
  4. Step 4: Simplify right side
    28,432.82x = 646,783,479.48
  5. Step 5: Solve for x
    x = 646,783,479.48/28,432.82
  6. Step 6: Final answer
    x = 22,747.78

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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.