Home / 47,679.98-71,511.86-12,623.18

Finding the Fourth Proportional to 47,679.98, 71,511.86 and 12,623.18

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Solution

The fourth proportional to 47,679.98, 71,511.86 and 12,623.18 is: 18,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,679.98 : 71,511.86 = 12,623.18 : x
  2. Step 2: Convert to fraction form
    47,679.98/71,511.86 = 12,623.18/x
  3. Step 3: Cross multiply
    47,679.98x = 71,511.86 × 12,623.18
  4. Step 4: Simplify right side
    47,679.98x = 902,707,080.91
  5. Step 5: Solve for x
    x = 902,707,080.91/47,679.98
  6. Step 6: Final answer
    x = 18,932.62

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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.