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Finding the Fourth Proportional to 26,891.30, 40,332.08 and 11,905.14

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Solution

The fourth proportional to 26,891.30, 40,332.08 and 11,905.14 is: 17,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,891.30 : 40,332.08 = 11,905.14 : x
  2. Step 2: Convert to fraction form
    26,891.30/40,332.08 = 11,905.14/x
  3. Step 3: Cross multiply
    26,891.30x = 40,332.08 × 11,905.14
  4. Step 4: Simplify right side
    26,891.30x = 480,159,058.89
  5. Step 5: Solve for x
    x = 480,159,058.89/26,891.30
  6. Step 6: Final answer
    x = 17,855.55

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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.