Home / 47,674.51-71,515.19-12,613.75

Finding the Fourth Proportional to 47,674.51, 71,515.19 and 12,613.75

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Solution

The fourth proportional to 47,674.51, 71,515.19 and 12,613.75 is: 18,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,674.51 : 71,515.19 = 12,613.75 : x
  2. Step 2: Convert to fraction form
    47,674.51/71,515.19 = 12,613.75/x
  3. Step 3: Cross multiply
    47,674.51x = 71,515.19 × 12,613.75
  4. Step 4: Simplify right side
    47,674.51x = 902,074,727.86
  5. Step 5: Solve for x
    x = 902,074,727.86/47,674.51
  6. Step 6: Final answer
    x = 18,921.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.