Home / 21,790.24-32,689.60-6,998.02

Finding the Fourth Proportional to 21,790.24, 32,689.60 and 6,998.02

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Solution

The fourth proportional to 21,790.24, 32,689.60 and 6,998.02 is: 10,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.24 : 32,689.60 = 6,998.02 : x
  2. Step 2: Convert to fraction form
    21,790.24/32,689.60 = 6,998.02/x
  3. Step 3: Cross multiply
    21,790.24x = 32,689.60 × 6,998.02
  4. Step 4: Simplify right side
    21,790.24x = 228,762,474.59
  5. Step 5: Solve for x
    x = 228,762,474.59/21,790.24
  6. Step 6: Final answer
    x = 10,498.39

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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.