Home / 20,561.55-30,844.25-5,770.40

Finding the Fourth Proportional to 20,561.55, 30,844.25 and 5,770.40

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Solution

The fourth proportional to 20,561.55, 30,844.25 and 5,770.40 is: 8,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.55 : 30,844.25 = 5,770.40 : x
  2. Step 2: Convert to fraction form
    20,561.55/30,844.25 = 5,770.40/x
  3. Step 3: Cross multiply
    20,561.55x = 30,844.25 × 5,770.40
  4. Step 4: Simplify right side
    20,561.55x = 177,983,477.13
  5. Step 5: Solve for x
    x = 177,983,477.13/20,561.55
  6. Step 6: Final answer
    x = 8,656.13

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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.