Home / 39,613.57-54,667.15-21,708.19

Finding the Fourth Proportional to 39,613.57, 54,667.15 and 21,708.19

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Solution

The fourth proportional to 39,613.57, 54,667.15 and 21,708.19 is: 29,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.57 : 54,667.15 = 21,708.19 : x
  2. Step 2: Convert to fraction form
    39,613.57/54,667.15 = 21,708.19/x
  3. Step 3: Cross multiply
    39,613.57x = 54,667.15 × 21,708.19
  4. Step 4: Simplify right side
    39,613.57x = 1,186,724,497.08
  5. Step 5: Solve for x
    x = 1,186,724,497.08/39,613.57
  6. Step 6: Final answer
    x = 29,957.53

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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.