Home / 20,555.24-30,830.59-5,764.75

Finding the Fourth Proportional to 20,555.24, 30,830.59 and 5,764.75

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Solution

The fourth proportional to 20,555.24, 30,830.59 and 5,764.75 is: 8,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.24 : 30,830.59 = 5,764.75 : x
  2. Step 2: Convert to fraction form
    20,555.24/30,830.59 = 5,764.75/x
  3. Step 3: Cross multiply
    20,555.24x = 30,830.59 × 5,764.75
  4. Step 4: Simplify right side
    20,555.24x = 177,730,643.70
  5. Step 5: Solve for x
    x = 177,730,643.70/20,555.24
  6. Step 6: Final answer
    x = 8,646.49

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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.