Home / 20,220.30-30,322.76-6,176.05

Finding the Fourth Proportional to 20,220.30, 30,322.76 and 6,176.05

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Solution

The fourth proportional to 20,220.30, 30,322.76 and 6,176.05 is: 9,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.30 : 30,322.76 = 6,176.05 : x
  2. Step 2: Convert to fraction form
    20,220.30/30,322.76 = 6,176.05/x
  3. Step 3: Cross multiply
    20,220.30x = 30,322.76 × 6,176.05
  4. Step 4: Simplify right side
    20,220.30x = 187,274,775.21
  5. Step 5: Solve for x
    x = 187,274,775.21/20,220.30
  6. Step 6: Final answer
    x = 9,261.72

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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.