Home / 47,490.46-71,260.21-20,855.14

Finding the Fourth Proportional to 47,490.46, 71,260.21 and 20,855.14

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Solution

The fourth proportional to 47,490.46, 71,260.21 and 20,855.14 is: 31,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,490.46 : 71,260.21 = 20,855.14 : x
  2. Step 2: Convert to fraction form
    47,490.46/71,260.21 = 20,855.14/x
  3. Step 3: Cross multiply
    47,490.46x = 71,260.21 × 20,855.14
  4. Step 4: Simplify right side
    47,490.46x = 1,486,141,572.64
  5. Step 5: Solve for x
    x = 1,486,141,572.64/47,490.46
  6. Step 6: Final answer
    x = 31,293.48

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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.