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Finding the Fourth Proportional to 26,951.40, 40,427.10 and 20,039.40

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Solution

The fourth proportional to 26,951.40, 40,427.10 and 20,039.40 is: 30,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,951.40 : 40,427.10 = 20,039.40 : x
  2. Step 2: Convert to fraction form
    26,951.40/40,427.10 = 20,039.40/x
  3. Step 3: Cross multiply
    26,951.40x = 40,427.10 × 20,039.40
  4. Step 4: Simplify right side
    26,951.40x = 810,134,827.74
  5. Step 5: Solve for x
    x = 810,134,827.74/26,951.40
  6. Step 6: Final answer
    x = 30,059.10

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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.