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Finding the Fourth Proportional to 26,729.98, 40,094.79 and 20,891.50

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Solution

The fourth proportional to 26,729.98, 40,094.79 and 20,891.50 is: 31,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.98 : 40,094.79 = 20,891.50 : x
  2. Step 2: Convert to fraction form
    26,729.98/40,094.79 = 20,891.50/x
  3. Step 3: Cross multiply
    26,729.98x = 40,094.79 × 20,891.50
  4. Step 4: Simplify right side
    26,729.98x = 837,640,305.29
  5. Step 5: Solve for x
    x = 837,640,305.29/26,729.98
  6. Step 6: Final answer
    x = 31,337.11

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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.