Home / 47,551.30-71,351.48-20,915.94

Finding the Fourth Proportional to 47,551.30, 71,351.48 and 20,915.94

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Solution

The fourth proportional to 47,551.30, 71,351.48 and 20,915.94 is: 31,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,551.30 : 71,351.48 = 20,915.94 : x
  2. Step 2: Convert to fraction form
    47,551.30/71,351.48 = 20,915.94/x
  3. Step 3: Cross multiply
    47,551.30x = 71,351.48 × 20,915.94
  4. Step 4: Simplify right side
    47,551.30x = 1,492,383,274.59
  5. Step 5: Solve for x
    x = 1,492,383,274.59/47,551.30
  6. Step 6: Final answer
    x = 31,384.70

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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.