Home / 20,110.72-30,122.34-13,507.60

Finding the Fourth Proportional to 20,110.72, 30,122.34 and 13,507.60

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Solution

The fourth proportional to 20,110.72, 30,122.34 and 13,507.60 is: 20,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.72 : 30,122.34 = 13,507.60 : x
  2. Step 2: Convert to fraction form
    20,110.72/30,122.34 = 13,507.60/x
  3. Step 3: Cross multiply
    20,110.72x = 30,122.34 × 13,507.60
  4. Step 4: Simplify right side
    20,110.72x = 406,880,519.78
  5. Step 5: Solve for x
    x = 406,880,519.78/20,110.72
  6. Step 6: Final answer
    x = 20,232.02

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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.