Home / 39,772.64-54,885.74-21,867.48

Finding the Fourth Proportional to 39,772.64, 54,885.74 and 21,867.48

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Solution

The fourth proportional to 39,772.64, 54,885.74 and 21,867.48 is: 30,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.64 : 54,885.74 = 21,867.48 : x
  2. Step 2: Convert to fraction form
    39,772.64/54,885.74 = 21,867.48/x
  3. Step 3: Cross multiply
    39,772.64x = 54,885.74 × 21,867.48
  4. Step 4: Simplify right side
    39,772.64x = 1,200,213,013.62
  5. Step 5: Solve for x
    x = 1,200,213,013.62/39,772.64
  6. Step 6: Final answer
    x = 30,176.85

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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.