Home / 40,412.43-60,620.13-20,667.87

Finding the Fourth Proportional to 40,412.43, 60,620.13 and 20,667.87

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Solution

The fourth proportional to 40,412.43, 60,620.13 and 20,667.87 is: 31,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,412.43 : 60,620.13 = 20,667.87 : x
  2. Step 2: Convert to fraction form
    40,412.43/60,620.13 = 20,667.87/x
  3. Step 3: Cross multiply
    40,412.43x = 60,620.13 × 20,667.87
  4. Step 4: Simplify right side
    40,412.43x = 1,252,888,966.22
  5. Step 5: Solve for x
    x = 1,252,888,966.22/40,412.43
  6. Step 6: Final answer
    x = 31,002.56

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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.