Home / 47,708.12-71,563.80-12,651.32

Finding the Fourth Proportional to 47,708.12, 71,563.80 and 12,651.32

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Solution

The fourth proportional to 47,708.12, 71,563.80 and 12,651.32 is: 18,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,708.12 : 71,563.80 = 12,651.32 : x
  2. Step 2: Convert to fraction form
    47,708.12/71,563.80 = 12,651.32/x
  3. Step 3: Cross multiply
    47,708.12x = 71,563.80 × 12,651.32
  4. Step 4: Simplify right side
    47,708.12x = 905,376,534.22
  5. Step 5: Solve for x
    x = 905,376,534.22/47,708.12
  6. Step 6: Final answer
    x = 18,977.41

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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.