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Finding the Fourth Proportional to 47,866.96, 71,800.50 and 12,806.60

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Solution

The fourth proportional to 47,866.96, 71,800.50 and 12,806.60 is: 19,209.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,866.96 : 71,800.50 = 12,806.60 : x
  2. Step 2: Convert to fraction form
    47,866.96/71,800.50 = 12,806.60/x
  3. Step 3: Cross multiply
    47,866.96x = 71,800.50 × 12,806.60
  4. Step 4: Simplify right side
    47,866.96x = 919,520,283.30
  5. Step 5: Solve for x
    x = 919,520,283.30/47,866.96
  6. Step 6: Final answer
    x = 19,209.92

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1.5x scale

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.