Home / 20,002.95-30,015.23-8,911.35

Finding the Fourth Proportional to 20,002.95, 30,015.23 and 8,911.35

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Solution

The fourth proportional to 20,002.95, 30,015.23 and 8,911.35 is: 13,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.95 : 30,015.23 = 8,911.35 : x
  2. Step 2: Convert to fraction form
    20,002.95/30,015.23 = 8,911.35/x
  3. Step 3: Cross multiply
    20,002.95x = 30,015.23 × 8,911.35
  4. Step 4: Simplify right side
    20,002.95x = 267,476,175.30
  5. Step 5: Solve for x
    x = 267,476,175.30/20,002.95
  6. Step 6: Final answer
    x = 13,371.84

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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.