Home / 13,335.42-20,003.12-3,975.20

Finding the Fourth Proportional to 13,335.42, 20,003.12 and 3,975.20

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Solution

The fourth proportional to 13,335.42, 20,003.12 and 3,975.20 is: 5,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.42 : 20,003.12 = 3,975.20 : x
  2. Step 2: Convert to fraction form
    13,335.42/20,003.12 = 3,975.20/x
  3. Step 3: Cross multiply
    13,335.42x = 20,003.12 × 3,975.20
  4. Step 4: Simplify right side
    13,335.42x = 79,516,402.62
  5. Step 5: Solve for x
    x = 79,516,402.62/13,335.42
  6. Step 6: Final answer
    x = 5,962.80

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Similar ratio
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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.