Home / 39,747.90-54,849.45-21,842.52

Finding the Fourth Proportional to 39,747.90, 54,849.45 and 21,842.52

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Solution

The fourth proportional to 39,747.90, 54,849.45 and 21,842.52 is: 30,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.90 : 54,849.45 = 21,842.52 : x
  2. Step 2: Convert to fraction form
    39,747.90/54,849.45 = 21,842.52/x
  3. Step 3: Cross multiply
    39,747.90x = 54,849.45 × 21,842.52
  4. Step 4: Simplify right side
    39,747.90x = 1,198,050,208.61
  5. Step 5: Solve for x
    x = 1,198,050,208.61/39,747.90
  6. Step 6: Final answer
    x = 30,141.22

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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.