Home / 20,847.24-31,260.60-6,986.52

Finding the Fourth Proportional to 20,847.24, 31,260.60 and 6,986.52

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Solution

The fourth proportional to 20,847.24, 31,260.60 and 6,986.52 is: 10,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.24 : 31,260.60 = 6,986.52 : x
  2. Step 2: Convert to fraction form
    20,847.24/31,260.60 = 6,986.52/x
  3. Step 3: Cross multiply
    20,847.24x = 31,260.60 × 6,986.52
  4. Step 4: Simplify right side
    20,847.24x = 218,402,807.11
  5. Step 5: Solve for x
    x = 218,402,807.11/20,847.24
  6. Step 6: Final answer
    x = 10,476.34

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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.