Home / 47,821.53-71,731.71-21,507.69

Finding the Fourth Proportional to 47,821.53, 71,731.71 and 21,507.69

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Solution

The fourth proportional to 47,821.53, 71,731.71 and 21,507.69 is: 32,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,821.53 : 71,731.71 = 21,507.69 : x
  2. Step 2: Convert to fraction form
    47,821.53/71,731.71 = 21,507.69/x
  3. Step 3: Cross multiply
    47,821.53x = 71,731.71 × 21,507.69
  4. Step 4: Simplify right side
    47,821.53x = 1,542,783,381.85
  5. Step 5: Solve for x
    x = 1,542,783,381.85/47,821.53
  6. Step 6: Final answer
    x = 32,261.27

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1.5x scale

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.