Home / 20,568.20-30,852.30-5,777.60

Finding the Fourth Proportional to 20,568.20, 30,852.30 and 5,777.60

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Solution

The fourth proportional to 20,568.20, 30,852.30 and 5,777.60 is: 8,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.20 : 30,852.30 = 5,777.60 : x
  2. Step 2: Convert to fraction form
    20,568.20/30,852.30 = 5,777.60/x
  3. Step 3: Cross multiply
    20,568.20x = 30,852.30 × 5,777.60
  4. Step 4: Simplify right side
    20,568.20x = 178,252,248.48
  5. Step 5: Solve for x
    x = 178,252,248.48/20,568.20
  6. Step 6: Final answer
    x = 8,666.40

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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.