Home / 39,572.24-54,609.78-21,668.42

Finding the Fourth Proportional to 39,572.24, 54,609.78 and 21,668.42

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Solution

The fourth proportional to 39,572.24, 54,609.78 and 21,668.42 is: 29,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,572.24 : 54,609.78 = 21,668.42 : x
  2. Step 2: Convert to fraction form
    39,572.24/54,609.78 = 21,668.42/x
  3. Step 3: Cross multiply
    39,572.24x = 54,609.78 × 21,668.42
  4. Step 4: Simplify right side
    39,572.24x = 1,183,307,649.15
  5. Step 5: Solve for x
    x = 1,183,307,649.15/39,572.24
  6. Step 6: Final answer
    x = 29,902.47

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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.