Home / 39,325.68-54,268.38-21,419.61

Finding the Fourth Proportional to 39,325.68, 54,268.38 and 21,419.61

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Solution

The fourth proportional to 39,325.68, 54,268.38 and 21,419.61 is: 29,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,325.68 : 54,268.38 = 21,419.61 : x
  2. Step 2: Convert to fraction form
    39,325.68/54,268.38 = 21,419.61/x
  3. Step 3: Cross multiply
    39,325.68x = 54,268.38 × 21,419.61
  4. Step 4: Simplify right side
    39,325.68x = 1,162,407,534.93
  5. Step 5: Solve for x
    x = 1,162,407,534.93/39,325.68
  6. Step 6: Final answer
    x = 29,558.49

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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.