Home / 21,779.92-32,665.97-5,769.56

Finding the Fourth Proportional to 21,779.92, 32,665.97 and 5,769.56

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Solution

The fourth proportional to 21,779.92, 32,665.97 and 5,769.56 is: 8,653.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.92 : 32,665.97 = 5,769.56 : x
  2. Step 2: Convert to fraction form
    21,779.92/32,665.97 = 5,769.56/x
  3. Step 3: Cross multiply
    21,779.92x = 32,665.97 × 5,769.56
  4. Step 4: Simplify right side
    21,779.92x = 188,468,337.51
  5. Step 5: Solve for x
    x = 188,468,337.51/21,779.92
  6. Step 6: Final answer
    x = 8,653.31

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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.