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Finding the Fourth Proportional to 26,758.88, 40,108.08 and 20,164.40

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Solution

The fourth proportional to 26,758.88, 40,108.08 and 20,164.40 is: 30,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,758.88 : 40,108.08 = 20,164.40 : x
  2. Step 2: Convert to fraction form
    26,758.88/40,108.08 = 20,164.40/x
  3. Step 3: Cross multiply
    26,758.88x = 40,108.08 × 20,164.40
  4. Step 4: Simplify right side
    26,758.88x = 808,755,368.35
  5. Step 5: Solve for x
    x = 808,755,368.35/26,758.88
  6. Step 6: Final answer
    x = 30,223.81

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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.