Home / 39,531.15-54,550.67-21,622.59

Finding the Fourth Proportional to 39,531.15, 54,550.67 and 21,622.59

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Solution

The fourth proportional to 39,531.15, 54,550.67 and 21,622.59 is: 29,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.15 : 54,550.67 = 21,622.59 : x
  2. Step 2: Convert to fraction form
    39,531.15/54,550.67 = 21,622.59/x
  3. Step 3: Cross multiply
    39,531.15x = 54,550.67 × 21,622.59
  4. Step 4: Simplify right side
    39,531.15x = 1,179,526,663.52
  5. Step 5: Solve for x
    x = 1,179,526,663.52/39,531.15
  6. Step 6: Final answer
    x = 29,837.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.