Home / 26,811.57-40,191.20-12,767.82

Finding the Fourth Proportional to 26,811.57, 40,191.20 and 12,767.82

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Solution

The fourth proportional to 26,811.57, 40,191.20 and 12,767.82 is: 19,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.57 : 40,191.20 = 12,767.82 : x
  2. Step 2: Convert to fraction form
    26,811.57/40,191.20 = 12,767.82/x
  3. Step 3: Cross multiply
    26,811.57x = 40,191.20 × 12,767.82
  4. Step 4: Simplify right side
    26,811.57x = 513,153,943.34
  5. Step 5: Solve for x
    x = 513,153,943.34/26,811.57
  6. Step 6: Final answer
    x = 19,139.27

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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.