Home / 19,769.80-29,676.30-11,000.20

Finding the Fourth Proportional to 19,769.80, 29,676.30 and 11,000.20

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Solution

The fourth proportional to 19,769.80, 29,676.30 and 11,000.20 is: 16,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.80 : 29,676.30 = 11,000.20 : x
  2. Step 2: Convert to fraction form
    19,769.80/29,676.30 = 11,000.20/x
  3. Step 3: Cross multiply
    19,769.80x = 29,676.30 × 11,000.20
  4. Step 4: Simplify right side
    19,769.80x = 326,445,235.26
  5. Step 5: Solve for x
    x = 326,445,235.26/19,769.80
  6. Step 6: Final answer
    x = 16,512.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.