Home / 20,556.24-30,822.39-8,061.63

Finding the Fourth Proportional to 20,556.24, 30,822.39 and 8,061.63

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Solution

The fourth proportional to 20,556.24, 30,822.39 and 8,061.63 is: 12,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.24 : 30,822.39 = 8,061.63 : x
  2. Step 2: Convert to fraction form
    20,556.24/30,822.39 = 8,061.63/x
  3. Step 3: Cross multiply
    20,556.24x = 30,822.39 × 8,061.63
  4. Step 4: Simplify right side
    20,556.24x = 248,478,703.90
  5. Step 5: Solve for x
    x = 248,478,703.90/20,556.24
  6. Step 6: Final answer
    x = 12,087.75

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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.