Home / 20,145.45-27,794.36-12,077.45

Finding the Fourth Proportional to 20,145.45, 27,794.36 and 12,077.45

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Solution

The fourth proportional to 20,145.45, 27,794.36 and 12,077.45 is: 16,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.45 : 27,794.36 = 12,077.45 : x
  2. Step 2: Convert to fraction form
    20,145.45/27,794.36 = 12,077.45/x
  3. Step 3: Cross multiply
    20,145.45x = 27,794.36 × 12,077.45
  4. Step 4: Simplify right side
    20,145.45x = 335,684,884.40
  5. Step 5: Solve for x
    x = 335,684,884.40/20,145.45
  6. Step 6: Final answer
    x = 16,663.06

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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.