Home / 20,147.40-30,190.30-13,549.16

Finding the Fourth Proportional to 20,147.40, 30,190.30 and 13,549.16

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Solution

The fourth proportional to 20,147.40, 30,190.30 and 13,549.16 is: 20,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.40 : 30,190.30 = 13,549.16 : x
  2. Step 2: Convert to fraction form
    20,147.40/30,190.30 = 13,549.16/x
  3. Step 3: Cross multiply
    20,147.40x = 30,190.30 × 13,549.16
  4. Step 4: Simplify right side
    20,147.40x = 409,053,205.15
  5. Step 5: Solve for x
    x = 409,053,205.15/20,147.40
  6. Step 6: Final answer
    x = 20,303.03

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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.