Home / 20,560.55-30,842.75-5,769.40

Finding the Fourth Proportional to 20,560.55, 30,842.75 and 5,769.40

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Solution

The fourth proportional to 20,560.55, 30,842.75 and 5,769.40 is: 8,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.55 : 30,842.75 = 5,769.40 : x
  2. Step 2: Convert to fraction form
    20,560.55/30,842.75 = 5,769.40/x
  3. Step 3: Cross multiply
    20,560.55x = 30,842.75 × 5,769.40
  4. Step 4: Simplify right side
    20,560.55x = 177,943,978.79
  5. Step 5: Solve for x
    x = 177,943,978.79/20,560.55
  6. Step 6: Final answer
    x = 8,654.63

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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.