Home / 39,401.86-54,375.94-21,497.86

Finding the Fourth Proportional to 39,401.86, 54,375.94 and 21,497.86

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Solution

The fourth proportional to 39,401.86, 54,375.94 and 21,497.86 is: 29,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.86 : 54,375.94 = 21,497.86 : x
  2. Step 2: Convert to fraction form
    39,401.86/54,375.94 = 21,497.86/x
  3. Step 3: Cross multiply
    39,401.86x = 54,375.94 × 21,497.86
  4. Step 4: Simplify right side
    39,401.86x = 1,168,966,345.49
  5. Step 5: Solve for x
    x = 1,168,966,345.49/39,401.86
  6. Step 6: Final answer
    x = 29,667.80

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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.