Home / 21,779.24-32,666.62-6,998.76

Finding the Fourth Proportional to 21,779.24, 32,666.62 and 6,998.76

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Solution

The fourth proportional to 21,779.24, 32,666.62 and 6,998.76 is: 10,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.24 : 32,666.62 = 6,998.76 : x
  2. Step 2: Convert to fraction form
    21,779.24/32,666.62 = 6,998.76/x
  3. Step 3: Cross multiply
    21,779.24x = 32,666.62 × 6,998.76
  4. Step 4: Simplify right side
    21,779.24x = 228,625,833.39
  5. Step 5: Solve for x
    x = 228,625,833.39/21,779.24
  6. Step 6: Final answer
    x = 10,497.42

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Double scale
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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.