Home / 28,921.44-39,909.51-16,983.15

Finding the Fourth Proportional to 28,921.44, 39,909.51 and 16,983.15

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Solution

The fourth proportional to 28,921.44, 39,909.51 and 16,983.15 is: 23,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.44 : 39,909.51 = 16,983.15 : x
  2. Step 2: Convert to fraction form
    28,921.44/39,909.51 = 16,983.15/x
  3. Step 3: Cross multiply
    28,921.44x = 39,909.51 × 16,983.15
  4. Step 4: Simplify right side
    28,921.44x = 677,789,194.76
  5. Step 5: Solve for x
    x = 677,789,194.76/28,921.44
  6. Step 6: Final answer
    x = 23,435.53

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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.