Home / 47,688.66-71,534.34-12,628.35

Finding the Fourth Proportional to 47,688.66, 71,534.34 and 12,628.35

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Solution

The fourth proportional to 47,688.66, 71,534.34 and 12,628.35 is: 18,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688.66 : 71,534.34 = 12,628.35 : x
  2. Step 2: Convert to fraction form
    47,688.66/71,534.34 = 12,628.35/x
  3. Step 3: Cross multiply
    47,688.66x = 71,534.34 × 12,628.35
  4. Step 4: Simplify right side
    47,688.66x = 903,360,682.54
  5. Step 5: Solve for x
    x = 903,360,682.54/47,688.66
  6. Step 6: Final answer
    x = 18,942.88

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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.