Home / 39,259.62-54,178.44-21,354.74

Finding the Fourth Proportional to 39,259.62, 54,178.44 and 21,354.74

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Solution

The fourth proportional to 39,259.62, 54,178.44 and 21,354.74 is: 29,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.62 : 54,178.44 = 21,354.74 : x
  2. Step 2: Convert to fraction form
    39,259.62/54,178.44 = 21,354.74/x
  3. Step 3: Cross multiply
    39,259.62x = 54,178.44 × 21,354.74
  4. Step 4: Simplify right side
    39,259.62x = 1,156,966,364.36
  5. Step 5: Solve for x
    x = 1,156,966,364.36/39,259.62
  6. Step 6: Final answer
    x = 29,469.63

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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.