Home / 28,818.53-39,768.77-16,072.10

Finding the Fourth Proportional to 28,818.53, 39,768.77 and 16,072.10

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Solution

The fourth proportional to 28,818.53, 39,768.77 and 16,072.10 is: 22,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.53 : 39,768.77 = 16,072.10 : x
  2. Step 2: Convert to fraction form
    28,818.53/39,768.77 = 16,072.10/x
  3. Step 3: Cross multiply
    28,818.53x = 39,768.77 × 16,072.10
  4. Step 4: Simplify right side
    28,818.53x = 639,167,449.47
  5. Step 5: Solve for x
    x = 639,167,449.47/28,818.53
  6. Step 6: Final answer
    x = 22,179.05

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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.