Home / 20,703.02-31,048.00-6,659.92

Finding the Fourth Proportional to 20,703.02, 31,048.00 and 6,659.92

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Solution

The fourth proportional to 20,703.02, 31,048.00 and 6,659.92 is: 9,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.02 : 31,048.00 = 6,659.92 : x
  2. Step 2: Convert to fraction form
    20,703.02/31,048.00 = 6,659.92/x
  3. Step 3: Cross multiply
    20,703.02x = 31,048.00 × 6,659.92
  4. Step 4: Simplify right side
    20,703.02x = 206,777,212.88
  5. Step 5: Solve for x
    x = 206,777,212.88/20,703.02
  6. Step 6: Final answer
    x = 9,987.78

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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.