Home / 39,641.67-54,705.58-21,736.55

Finding the Fourth Proportional to 39,641.67, 54,705.58 and 21,736.55

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Solution

The fourth proportional to 39,641.67, 54,705.58 and 21,736.55 is: 29,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.67 : 54,705.58 = 21,736.55 : x
  2. Step 2: Convert to fraction form
    39,641.67/54,705.58 = 21,736.55/x
  3. Step 3: Cross multiply
    39,641.67x = 54,705.58 × 21,736.55
  4. Step 4: Simplify right side
    39,641.67x = 1,189,110,657.37
  5. Step 5: Solve for x
    x = 1,189,110,657.37/39,641.67
  6. Step 6: Final answer
    x = 29,996.48

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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.