Home / 21,700.80-32,536.62-8,546.40

Finding the Fourth Proportional to 21,700.80, 32,536.62 and 8,546.40

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Solution

The fourth proportional to 21,700.80, 32,536.62 and 8,546.40 is: 12,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.80 : 32,536.62 = 8,546.40 : x
  2. Step 2: Convert to fraction form
    21,700.80/32,536.62 = 8,546.40/x
  3. Step 3: Cross multiply
    21,700.80x = 32,536.62 × 8,546.40
  4. Step 4: Simplify right side
    21,700.80x = 278,070,969.17
  5. Step 5: Solve for x
    x = 278,070,969.17/21,700.80
  6. Step 6: Final answer
    x = 12,813.86

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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.