Home / 28,172.14-38,886.20-16,243.44

Finding the Fourth Proportional to 28,172.14, 38,886.20 and 16,243.44

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Solution

The fourth proportional to 28,172.14, 38,886.20 and 16,243.44 is: 22,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.14 : 38,886.20 = 16,243.44 : x
  2. Step 2: Convert to fraction form
    28,172.14/38,886.20 = 16,243.44/x
  3. Step 3: Cross multiply
    28,172.14x = 38,886.20 × 16,243.44
  4. Step 4: Simplify right side
    28,172.14x = 631,645,656.53
  5. Step 5: Solve for x
    x = 631,645,656.53/28,172.14
  6. Step 6: Final answer
    x = 22,420.93

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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.