Home / 20,862.58-28,767.44-16,072.10

Finding the Fourth Proportional to 20,862.58, 28,767.44 and 16,072.10

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Solution

The fourth proportional to 20,862.58, 28,767.44 and 16,072.10 is: 22,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.58 : 28,767.44 = 16,072.10 : x
  2. Step 2: Convert to fraction form
    20,862.58/28,767.44 = 16,072.10/x
  3. Step 3: Cross multiply
    20,862.58x = 28,767.44 × 16,072.10
  4. Step 4: Simplify right side
    20,862.58x = 462,353,172.42
  5. Step 5: Solve for x
    x = 462,353,172.42/20,862.58
  6. Step 6: Final answer
    x = 22,161.84

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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.