Home / 47,986.16-71,982.84-21,705.68

Finding the Fourth Proportional to 47,986.16, 71,982.84 and 21,705.68

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Solution

The fourth proportional to 47,986.16, 71,982.84 and 21,705.68 is: 32,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.16 : 71,982.84 = 21,705.68 : x
  2. Step 2: Convert to fraction form
    47,986.16/71,982.84 = 21,705.68/x
  3. Step 3: Cross multiply
    47,986.16x = 71,982.84 × 21,705.68
  4. Step 4: Simplify right side
    47,986.16x = 1,562,436,490.53
  5. Step 5: Solve for x
    x = 1,562,436,490.53/47,986.16
  6. Step 6: Final answer
    x = 32,560.15

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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.