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Finding the Fourth Proportional to 26,955.66, 40,417.01 and 12,919.98

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Solution

The fourth proportional to 26,955.66, 40,417.01 and 12,919.98 is: 19,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,955.66 : 40,417.01 = 12,919.98 : x
  2. Step 2: Convert to fraction form
    26,955.66/40,417.01 = 12,919.98/x
  3. Step 3: Cross multiply
    26,955.66x = 40,417.01 × 12,919.98
  4. Step 4: Simplify right side
    26,955.66x = 522,186,791.07
  5. Step 5: Solve for x
    x = 522,186,791.07/26,955.66
  6. Step 6: Final answer
    x = 19,372.07

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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.