Home / 15,847.80-23,771.70-4,162.20

Finding the Fourth Proportional to 15,847.80, 23,771.70 and 4,162.20

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Solution

The fourth proportional to 15,847.80, 23,771.70 and 4,162.20 is: 6,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847.80 : 23,771.70 = 4,162.20 : x
  2. Step 2: Convert to fraction form
    15,847.80/23,771.70 = 4,162.20/x
  3. Step 3: Cross multiply
    15,847.80x = 23,771.70 × 4,162.20
  4. Step 4: Simplify right side
    15,847.80x = 98,942,569.74
  5. Step 5: Solve for x
    x = 98,942,569.74/15,847.80
  6. Step 6: Final answer
    x = 6,243.30

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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.