Home / 36,511.25-54,755.73-18,971.51

Finding the Fourth Proportional to 36,511.25, 54,755.73 and 18,971.51

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Solution

The fourth proportional to 36,511.25, 54,755.73 and 18,971.51 is: 28,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,511.25 : 54,755.73 = 18,971.51 : x
  2. Step 2: Convert to fraction form
    36,511.25/54,755.73 = 18,971.51/x
  3. Step 3: Cross multiply
    36,511.25x = 54,755.73 × 18,971.51
  4. Step 4: Simplify right side
    36,511.25x = 1,038,798,605.47
  5. Step 5: Solve for x
    x = 1,038,798,605.47/36,511.25
  6. Step 6: Final answer
    x = 28,451.47

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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.