Home / 39,613.50-54,667.06-21,708.12

Finding the Fourth Proportional to 39,613.50, 54,667.06 and 21,708.12

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Solution

The fourth proportional to 39,613.50, 54,667.06 and 21,708.12 is: 29,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.50 : 54,667.06 = 21,708.12 : x
  2. Step 2: Convert to fraction form
    39,613.50/54,667.06 = 21,708.12/x
  3. Step 3: Cross multiply
    39,613.50x = 54,667.06 × 21,708.12
  4. Step 4: Simplify right side
    39,613.50x = 1,186,719,152.80
  5. Step 5: Solve for x
    x = 1,186,719,152.80/39,613.50
  6. Step 6: Final answer
    x = 29,957.44

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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.