Home / 26,808.45-40,194.45-12,775.20

Finding the Fourth Proportional to 26,808.45, 40,194.45 and 12,775.20

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Solution

The fourth proportional to 26,808.45, 40,194.45 and 12,775.20 is: 19,154.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,808.45 : 40,194.45 = 12,775.20 : x
  2. Step 2: Convert to fraction form
    26,808.45/40,194.45 = 12,775.20/x
  3. Step 3: Cross multiply
    26,808.45x = 40,194.45 × 12,775.20
  4. Step 4: Simplify right side
    26,808.45x = 513,492,137.64
  5. Step 5: Solve for x
    x = 513,492,137.64/26,808.45
  6. Step 6: Final answer
    x = 19,154.12

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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.