Home / 39,146.49-54,022.55-21,241.64

Finding the Fourth Proportional to 39,146.49, 54,022.55 and 21,241.64

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Solution

The fourth proportional to 39,146.49, 54,022.55 and 21,241.64 is: 29,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,146.49 : 54,022.55 = 21,241.64 : x
  2. Step 2: Convert to fraction form
    39,146.49/54,022.55 = 21,241.64/x
  3. Step 3: Cross multiply
    39,146.49x = 54,022.55 × 21,241.64
  4. Step 4: Simplify right side
    39,146.49x = 1,147,527,587.83
  5. Step 5: Solve for x
    x = 1,147,527,587.83/39,146.49
  6. Step 6: Final answer
    x = 29,313.68

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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.