Home / 13,559.64-20,341.32-4,200.42

Finding the Fourth Proportional to 13,559.64, 20,341.32 and 4,200.42

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Solution

The fourth proportional to 13,559.64, 20,341.32 and 4,200.42 is: 6,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.64 : 20,341.32 = 4,200.42 : x
  2. Step 2: Convert to fraction form
    13,559.64/20,341.32 = 4,200.42/x
  3. Step 3: Cross multiply
    13,559.64x = 20,341.32 × 4,200.42
  4. Step 4: Simplify right side
    13,559.64x = 85,442,087.35
  5. Step 5: Solve for x
    x = 85,442,087.35/13,559.64
  6. Step 6: Final answer
    x = 6,301.21

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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.