Home / 20,087.46-27,719.89-11,012.63

Finding the Fourth Proportional to 20,087.46, 27,719.89 and 11,012.63

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Solution

The fourth proportional to 20,087.46, 27,719.89 and 11,012.63 is: 15,196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.46 : 27,719.89 = 11,012.63 : x
  2. Step 2: Convert to fraction form
    20,087.46/27,719.89 = 11,012.63/x
  3. Step 3: Cross multiply
    20,087.46x = 27,719.89 × 11,012.63
  4. Step 4: Simplify right side
    20,087.46x = 305,268,726.08
  5. Step 5: Solve for x
    x = 305,268,726.08/20,087.46
  6. Step 6: Final answer
    x = 15,196.98

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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.