Home / 20,079.58-27,732.54-13,695.28

Finding the Fourth Proportional to 20,079.58, 27,732.54 and 13,695.28

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Solution

The fourth proportional to 20,079.58, 27,732.54 and 13,695.28 is: 18,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.58 : 27,732.54 = 13,695.28 : x
  2. Step 2: Convert to fraction form
    20,079.58/27,732.54 = 13,695.28/x
  3. Step 3: Cross multiply
    20,079.58x = 27,732.54 × 13,695.28
  4. Step 4: Simplify right side
    20,079.58x = 379,804,900.41
  5. Step 5: Solve for x
    x = 379,804,900.41/20,079.58
  6. Step 6: Final answer
    x = 18,914.98

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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.