Home / 38,732.68-53,447.76-21,734.60

Finding the Fourth Proportional to 38,732.68, 53,447.76 and 21,734.60

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Solution

The fourth proportional to 38,732.68, 53,447.76 and 21,734.60 is: 29,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,732.68 : 53,447.76 = 21,734.60 : x
  2. Step 2: Convert to fraction form
    38,732.68/53,447.76 = 21,734.60/x
  3. Step 3: Cross multiply
    38,732.68x = 53,447.76 × 21,734.60
  4. Step 4: Simplify right side
    38,732.68x = 1,161,665,684.50
  5. Step 5: Solve for x
    x = 1,161,665,684.50/38,732.68
  6. Step 6: Final answer
    x = 29,991.87

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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.