Home / 20,844.22-28,765.20-12,346.82

Finding the Fourth Proportional to 20,844.22, 28,765.20 and 12,346.82

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Solution

The fourth proportional to 20,844.22, 28,765.20 and 12,346.82 is: 17,038.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.22 : 28,765.20 = 12,346.82 : x
  2. Step 2: Convert to fraction form
    20,844.22/28,765.20 = 12,346.82/x
  3. Step 3: Cross multiply
    20,844.22x = 28,765.20 × 12,346.82
  4. Step 4: Simplify right side
    20,844.22x = 355,158,864.88
  5. Step 5: Solve for x
    x = 355,158,864.88/20,844.22
  6. Step 6: Final answer
    x = 17,038.72

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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.