Home / 39,842.63-54,982.73-21,937.64

Finding the Fourth Proportional to 39,842.63, 54,982.73 and 21,937.64

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Solution

The fourth proportional to 39,842.63, 54,982.73 and 21,937.64 is: 30,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.63 : 54,982.73 = 21,937.64 : x
  2. Step 2: Convert to fraction form
    39,842.63/54,982.73 = 21,937.64/x
  3. Step 3: Cross multiply
    39,842.63x = 54,982.73 × 21,937.64
  4. Step 4: Simplify right side
    39,842.63x = 1,206,191,336.96
  5. Step 5: Solve for x
    x = 1,206,191,336.96/39,842.63
  6. Step 6: Final answer
    x = 30,273.89

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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.