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Finding the Fourth Proportional to 26,747.84, 40,127.16 and 18,431.84

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Solution

The fourth proportional to 26,747.84, 40,127.16 and 18,431.84 is: 27,651.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,747.84 : 40,127.16 = 18,431.84 : x
  2. Step 2: Convert to fraction form
    26,747.84/40,127.16 = 18,431.84/x
  3. Step 3: Cross multiply
    26,747.84x = 40,127.16 × 18,431.84
  4. Step 4: Simplify right side
    26,747.84x = 739,617,392.77
  5. Step 5: Solve for x
    x = 739,617,392.77/26,747.84
  6. Step 6: Final answer
    x = 27,651.48

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1.5x scale

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.