Home / 28,591.13-39,455.76-16,016.15

Finding the Fourth Proportional to 28,591.13, 39,455.76 and 16,016.15

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Solution

The fourth proportional to 28,591.13, 39,455.76 and 16,016.15 is: 22,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.13 : 39,455.76 = 16,016.15 : x
  2. Step 2: Convert to fraction form
    28,591.13/39,455.76 = 16,016.15/x
  3. Step 3: Cross multiply
    28,591.13x = 39,455.76 × 16,016.15
  4. Step 4: Simplify right side
    28,591.13x = 631,929,173.25
  5. Step 5: Solve for x
    x = 631,929,173.25/28,591.13
  6. Step 6: Final answer
    x = 22,102.28

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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.