Home / 39,453.67-54,447.25-21,549.63

Finding the Fourth Proportional to 39,453.67, 54,447.25 and 21,549.63

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Solution

The fourth proportional to 39,453.67, 54,447.25 and 21,549.63 is: 29,739.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.67 : 54,447.25 = 21,549.63 : x
  2. Step 2: Convert to fraction form
    39,453.67/54,447.25 = 21,549.63/x
  3. Step 3: Cross multiply
    39,453.67x = 54,447.25 × 21,549.63
  4. Step 4: Simplify right side
    39,453.67x = 1,173,318,092.02
  5. Step 5: Solve for x
    x = 1,173,318,092.02/39,453.67
  6. Step 6: Final answer
    x = 29,739.14

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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.