Home / 21,930.57-32,877.39-8,775.75

Finding the Fourth Proportional to 21,930.57, 32,877.39 and 8,775.75

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Solution

The fourth proportional to 21,930.57, 32,877.39 and 8,775.75 is: 13,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.57 : 32,877.39 = 8,775.75 : x
  2. Step 2: Convert to fraction form
    21,930.57/32,877.39 = 8,775.75/x
  3. Step 3: Cross multiply
    21,930.57x = 32,877.39 × 8,775.75
  4. Step 4: Simplify right side
    21,930.57x = 288,523,755.29
  5. Step 5: Solve for x
    x = 288,523,755.29/21,930.57
  6. Step 6: Final answer
    x = 13,156.24

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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.