Home / 39,614.75-54,668.79-21,709.37

Finding the Fourth Proportional to 39,614.75, 54,668.79 and 21,709.37

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Solution

The fourth proportional to 39,614.75, 54,668.79 and 21,709.37 is: 29,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,614.75 : 54,668.79 = 21,709.37 : x
  2. Step 2: Convert to fraction form
    39,614.75/54,668.79 = 21,709.37/x
  3. Step 3: Cross multiply
    39,614.75x = 54,668.79 × 21,709.37
  4. Step 4: Simplify right side
    39,614.75x = 1,186,825,126.23
  5. Step 5: Solve for x
    x = 1,186,825,126.23/39,614.75
  6. Step 6: Final answer
    x = 29,959.17

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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.