Home / 26,911.10-40,366.65-21,072.70

Finding the Fourth Proportional to 26,911.10, 40,366.65 and 21,072.70

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Solution

The fourth proportional to 26,911.10, 40,366.65 and 21,072.70 is: 31,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.10 : 40,366.65 = 21,072.70 : x
  2. Step 2: Convert to fraction form
    26,911.10/40,366.65 = 21,072.70/x
  3. Step 3: Cross multiply
    26,911.10x = 40,366.65 × 21,072.70
  4. Step 4: Simplify right side
    26,911.10x = 850,634,305.46
  5. Step 5: Solve for x
    x = 850,634,305.46/26,911.10
  6. Step 6: Final answer
    x = 31,609.05

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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.