Home / 28,821.93-39,777.66-16,077.12

Finding the Fourth Proportional to 28,821.93, 39,777.66 and 16,077.12

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Solution

The fourth proportional to 28,821.93, 39,777.66 and 16,077.12 is: 22,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.93 : 39,777.66 = 16,077.12 : x
  2. Step 2: Convert to fraction form
    28,821.93/39,777.66 = 16,077.12/x
  3. Step 3: Cross multiply
    28,821.93x = 39,777.66 × 16,077.12
  4. Step 4: Simplify right side
    28,821.93x = 639,510,213.14
  5. Step 5: Solve for x
    x = 639,510,213.14/28,821.93
  6. Step 6: Final answer
    x = 22,188.32

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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.