Home / 47,911.28-71,880.78-19,826.15

Finding the Fourth Proportional to 47,911.28, 71,880.78 and 19,826.15

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Solution

The fourth proportional to 47,911.28, 71,880.78 and 19,826.15 is: 29,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,911.28 : 71,880.78 = 19,826.15 : x
  2. Step 2: Convert to fraction form
    47,911.28/71,880.78 = 19,826.15/x
  3. Step 3: Cross multiply
    47,911.28x = 71,880.78 × 19,826.15
  4. Step 4: Simplify right side
    47,911.28x = 1,425,118,841.34
  5. Step 5: Solve for x
    x = 1,425,118,841.34/47,911.28
  6. Step 6: Final answer
    x = 29,744.96

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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.