Home / 47,488.56-71,199.63-20,821.74

Finding the Fourth Proportional to 47,488.56, 71,199.63 and 20,821.74

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Solution

The fourth proportional to 47,488.56, 71,199.63 and 20,821.74 is: 31,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,488.56 : 71,199.63 = 20,821.74 : x
  2. Step 2: Convert to fraction form
    47,488.56/71,199.63 = 20,821.74/x
  3. Step 3: Cross multiply
    47,488.56x = 71,199.63 × 20,821.74
  4. Step 4: Simplify right side
    47,488.56x = 1,482,500,183.96
  5. Step 5: Solve for x
    x = 1,482,500,183.96/47,488.56
  6. Step 6: Final answer
    x = 31,218.05

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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.