Home / 20,201.04-30,304.80-8,515.08

Finding the Fourth Proportional to 20,201.04, 30,304.80 and 8,515.08

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Solution

The fourth proportional to 20,201.04, 30,304.80 and 8,515.08 is: 12,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.04 : 30,304.80 = 8,515.08 : x
  2. Step 2: Convert to fraction form
    20,201.04/30,304.80 = 8,515.08/x
  3. Step 3: Cross multiply
    20,201.04x = 30,304.80 × 8,515.08
  4. Step 4: Simplify right side
    20,201.04x = 258,047,796.38
  5. Step 5: Solve for x
    x = 258,047,796.38/20,201.04
  6. Step 6: Final answer
    x = 12,773.99

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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.