Home / 39,613.24-54,665.40-21,707.86

Finding the Fourth Proportional to 39,613.24, 54,665.40 and 21,707.86

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Solution

The fourth proportional to 39,613.24, 54,665.40 and 21,707.86 is: 29,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.24 : 54,665.40 = 21,707.86 : x
  2. Step 2: Convert to fraction form
    39,613.24/54,665.40 = 21,707.86/x
  3. Step 3: Cross multiply
    39,613.24x = 54,665.40 × 21,707.86
  4. Step 4: Simplify right side
    39,613.24x = 1,186,668,850.04
  5. Step 5: Solve for x
    x = 1,186,668,850.04/39,613.24
  6. Step 6: Final answer
    x = 29,956.37

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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.