Home / 20,229.39-27,898.38-12,676.55

Finding the Fourth Proportional to 20,229.39, 27,898.38 and 12,676.55

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Solution

The fourth proportional to 20,229.39, 27,898.38 and 12,676.55 is: 17,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.39 : 27,898.38 = 12,676.55 : x
  2. Step 2: Convert to fraction form
    20,229.39/27,898.38 = 12,676.55/x
  3. Step 3: Cross multiply
    20,229.39x = 27,898.38 × 12,676.55
  4. Step 4: Simplify right side
    20,229.39x = 353,655,069.50
  5. Step 5: Solve for x
    x = 353,655,069.50/20,229.39
  6. Step 6: Final answer
    x = 17,482.24

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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.