Home / 20,077.28-27,697.56-12,116.96

Finding the Fourth Proportional to 20,077.28, 27,697.56 and 12,116.96

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Solution

The fourth proportional to 20,077.28, 27,697.56 and 12,116.96 is: 16,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.28 : 27,697.56 = 12,116.96 : x
  2. Step 2: Convert to fraction form
    20,077.28/27,697.56 = 12,116.96/x
  3. Step 3: Cross multiply
    20,077.28x = 27,697.56 × 12,116.96
  4. Step 4: Simplify right side
    20,077.28x = 335,610,226.62
  5. Step 5: Solve for x
    x = 335,610,226.62/20,077.28
  6. Step 6: Final answer
    x = 16,715.92

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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.