Home / 47,443.08-71,164.62-20,815.14

Finding the Fourth Proportional to 47,443.08, 71,164.62 and 20,815.14

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Solution

The fourth proportional to 47,443.08, 71,164.62 and 20,815.14 is: 31,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,443.08 : 71,164.62 = 20,815.14 : x
  2. Step 2: Convert to fraction form
    47,443.08/71,164.62 = 20,815.14/x
  3. Step 3: Cross multiply
    47,443.08x = 71,164.62 × 20,815.14
  4. Step 4: Simplify right side
    47,443.08x = 1,481,301,528.35
  5. Step 5: Solve for x
    x = 1,481,301,528.35/47,443.08
  6. Step 6: Final answer
    x = 31,222.71

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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.