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Finding the Fourth Proportional to 26,311.88, 36,310.39 and 15,133.88

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Solution

The fourth proportional to 26,311.88, 36,310.39 and 15,133.88 is: 20,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,311.88 : 36,310.39 = 15,133.88 : x
  2. Step 2: Convert to fraction form
    26,311.88/36,310.39 = 15,133.88/x
  3. Step 3: Cross multiply
    26,311.88x = 36,310.39 × 15,133.88
  4. Step 4: Simplify right side
    26,311.88x = 549,516,865.63
  5. Step 5: Solve for x
    x = 549,516,865.63/26,311.88
  6. Step 6: Final answer
    x = 20,884.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.