Home / 39,613.08-54,665.73-21,708.04

Finding the Fourth Proportional to 39,613.08, 54,665.73 and 21,708.04

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Solution

The fourth proportional to 39,613.08, 54,665.73 and 21,708.04 is: 29,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.08 : 54,665.73 = 21,708.04 : x
  2. Step 2: Convert to fraction form
    39,613.08/54,665.73 = 21,708.04/x
  3. Step 3: Cross multiply
    39,613.08x = 54,665.73 × 21,708.04
  4. Step 4: Simplify right side
    39,613.08x = 1,186,685,853.47
  5. Step 5: Solve for x
    x = 1,186,685,853.47/39,613.08
  6. Step 6: Final answer
    x = 29,956.92

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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.