Home / 39,614.88-54,668.54-21,709.72

Finding the Fourth Proportional to 39,614.88, 54,668.54 and 21,709.72

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Solution

The fourth proportional to 39,614.88, 54,668.54 and 21,709.72 is: 29,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,614.88 : 54,668.54 = 21,709.72 : x
  2. Step 2: Convert to fraction form
    39,614.88/54,668.54 = 21,709.72/x
  3. Step 3: Cross multiply
    39,614.88x = 54,668.54 × 21,709.72
  4. Step 4: Simplify right side
    39,614.88x = 1,186,838,696.21
  5. Step 5: Solve for x
    x = 1,186,838,696.21/39,614.88
  6. Step 6: Final answer
    x = 29,959.42

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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.