Home / 20,515.03-30,777.73-5,723.94

Finding the Fourth Proportional to 20,515.03, 30,777.73 and 5,723.94

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Solution

The fourth proportional to 20,515.03, 30,777.73 and 5,723.94 is: 8,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.03 : 30,777.73 = 5,723.94 : x
  2. Step 2: Convert to fraction form
    20,515.03/30,777.73 = 5,723.94/x
  3. Step 3: Cross multiply
    20,515.03x = 30,777.73 × 5,723.94
  4. Step 4: Simplify right side
    20,515.03x = 176,169,788.60
  5. Step 5: Solve for x
    x = 176,169,788.60/20,515.03
  6. Step 6: Final answer
    x = 8,587.35

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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.