Home / 47,905-71,829.64-18,324.88

Finding the Fourth Proportional to 47,905, 71,829.64 and 18,324.88

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Solution

The fourth proportional to 47,905, 71,829.64 and 18,324.88 is: 27,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905 : 71,829.64 = 18,324.88 : x
  2. Step 2: Convert to fraction form
    47,905/71,829.64 = 18,324.88/x
  3. Step 3: Cross multiply
    47,905x = 71,829.64 × 18,324.88
  4. Step 4: Simplify right side
    47,905x = 1,316,269,533.44
  5. Step 5: Solve for x
    x = 1,316,269,533.44/47,905
  6. Step 6: Final answer
    x = 27,476.66

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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.