Home / 20,365.85-30,559.98-8,528.11

Finding the Fourth Proportional to 20,365.85, 30,559.98 and 8,528.11

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Solution

The fourth proportional to 20,365.85, 30,559.98 and 8,528.11 is: 12,796.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.85 : 30,559.98 = 8,528.11 : x
  2. Step 2: Convert to fraction form
    20,365.85/30,559.98 = 8,528.11/x
  3. Step 3: Cross multiply
    20,365.85x = 30,559.98 × 8,528.11
  4. Step 4: Simplify right side
    20,365.85x = 260,618,871.04
  5. Step 5: Solve for x
    x = 260,618,871.04/20,365.85
  6. Step 6: Final answer
    x = 12,796.86

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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.