Home / 20,172.02-27,836.89-11,672.96

Finding the Fourth Proportional to 20,172.02, 27,836.89 and 11,672.96

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Solution

The fourth proportional to 20,172.02, 27,836.89 and 11,672.96 is: 16,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.02 : 27,836.89 = 11,672.96 : x
  2. Step 2: Convert to fraction form
    20,172.02/27,836.89 = 11,672.96/x
  3. Step 3: Cross multiply
    20,172.02x = 27,836.89 × 11,672.96
  4. Step 4: Simplify right side
    20,172.02x = 324,938,903.49
  5. Step 5: Solve for x
    x = 324,938,903.49/20,172.02
  6. Step 6: Final answer
    x = 16,108.40

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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.