Home / 26,826.64-40,209-19,700.80

Finding the Fourth Proportional to 26,826.64, 40,209 and 19,700.80

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Solution

The fourth proportional to 26,826.64, 40,209 and 19,700.80 is: 29,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,826.64 : 40,209 = 19,700.80 : x
  2. Step 2: Convert to fraction form
    26,826.64/40,209 = 19,700.80/x
  3. Step 3: Cross multiply
    26,826.64x = 40,209 × 19,700.80
  4. Step 4: Simplify right side
    26,826.64x = 792,149,467.20
  5. Step 5: Solve for x
    x = 792,149,467.20/26,826.64
  6. Step 6: Final answer
    x = 29,528.46

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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.