Home / 36,511.10-54,755.70-18,971.36

Finding the Fourth Proportional to 36,511.10, 54,755.70 and 18,971.36

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Solution

The fourth proportional to 36,511.10, 54,755.70 and 18,971.36 is: 28,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,511.10 : 54,755.70 = 18,971.36 : x
  2. Step 2: Convert to fraction form
    36,511.10/54,755.70 = 18,971.36/x
  3. Step 3: Cross multiply
    36,511.10x = 54,755.70 × 18,971.36
  4. Step 4: Simplify right side
    36,511.10x = 1,038,790,096.75
  5. Step 5: Solve for x
    x = 1,038,790,096.75/36,511.10
  6. Step 6: Final answer
    x = 28,451.35

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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.