Home / 20,208.92-30,315.49-7,739.46

Finding the Fourth Proportional to 20,208.92, 30,315.49 and 7,739.46

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Solution

The fourth proportional to 20,208.92, 30,315.49 and 7,739.46 is: 11,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.92 : 30,315.49 = 7,739.46 : x
  2. Step 2: Convert to fraction form
    20,208.92/30,315.49 = 7,739.46/x
  3. Step 3: Cross multiply
    20,208.92x = 30,315.49 × 7,739.46
  4. Step 4: Simplify right side
    20,208.92x = 234,625,502.89
  5. Step 5: Solve for x
    x = 234,625,502.89/20,208.92
  6. Step 6: Final answer
    x = 11,610.00

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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.