Home / 20,072.91-27,685.02-13,704.63

Finding the Fourth Proportional to 20,072.91, 27,685.02 and 13,704.63

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Solution

The fourth proportional to 20,072.91, 27,685.02 and 13,704.63 is: 18,901.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.91 : 27,685.02 = 13,704.63 : x
  2. Step 2: Convert to fraction form
    20,072.91/27,685.02 = 13,704.63/x
  3. Step 3: Cross multiply
    20,072.91x = 27,685.02 × 13,704.63
  4. Step 4: Simplify right side
    20,072.91x = 379,412,903.22
  5. Step 5: Solve for x
    x = 379,412,903.22/20,072.91
  6. Step 6: Final answer
    x = 18,901.74

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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.