Home / 39,794.64-54,915.18-21,888.50

Finding the Fourth Proportional to 39,794.64, 54,915.18 and 21,888.50

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Solution

The fourth proportional to 39,794.64, 54,915.18 and 21,888.50 is: 30,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.64 : 54,915.18 = 21,888.50 : x
  2. Step 2: Convert to fraction form
    39,794.64/54,915.18 = 21,888.50/x
  3. Step 3: Cross multiply
    39,794.64x = 54,915.18 × 21,888.50
  4. Step 4: Simplify right side
    39,794.64x = 1,202,010,917.43
  5. Step 5: Solve for x
    x = 1,202,010,917.43/39,794.64
  6. Step 6: Final answer
    x = 30,205.35

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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.