Home / 47,518.20-71,281.14-12,457.75

Finding the Fourth Proportional to 47,518.20, 71,281.14 and 12,457.75

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Solution

The fourth proportional to 47,518.20, 71,281.14 and 12,457.75 is: 18,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,518.20 : 71,281.14 = 12,457.75 : x
  2. Step 2: Convert to fraction form
    47,518.20/71,281.14 = 12,457.75/x
  3. Step 3: Cross multiply
    47,518.20x = 71,281.14 × 12,457.75
  4. Step 4: Simplify right side
    47,518.20x = 888,002,621.84
  5. Step 5: Solve for x
    x = 888,002,621.84/47,518.20
  6. Step 6: Final answer
    x = 18,687.63

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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.