Home / 20,779.66-31,162.11-6,736.27

Finding the Fourth Proportional to 20,779.66, 31,162.11 and 6,736.27

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Solution

The fourth proportional to 20,779.66, 31,162.11 and 6,736.27 is: 10,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779.66 : 31,162.11 = 6,736.27 : x
  2. Step 2: Convert to fraction form
    20,779.66/31,162.11 = 6,736.27/x
  3. Step 3: Cross multiply
    20,779.66x = 31,162.11 × 6,736.27
  4. Step 4: Simplify right side
    20,779.66x = 209,916,386.73
  5. Step 5: Solve for x
    x = 209,916,386.73/20,779.66
  6. Step 6: Final answer
    x = 10,102.01

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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.