Home / 26,820.64-40,200-19,694.80

Finding the Fourth Proportional to 26,820.64, 40,200 and 19,694.80

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Solution

The fourth proportional to 26,820.64, 40,200 and 19,694.80 is: 29,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,820.64 : 40,200 = 19,694.80 : x
  2. Step 2: Convert to fraction form
    26,820.64/40,200 = 19,694.80/x
  3. Step 3: Cross multiply
    26,820.64x = 40,200 × 19,694.80
  4. Step 4: Simplify right side
    26,820.64x = 791,730,960
  5. Step 5: Solve for x
    x = 791,730,960/26,820.64
  6. Step 6: Final answer
    x = 29,519.47

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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.