Home / 20,103.90-27,711.42-15,848.04

Finding the Fourth Proportional to 20,103.90, 27,711.42 and 15,848.04

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Solution

The fourth proportional to 20,103.90, 27,711.42 and 15,848.04 is: 21,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.90 : 27,711.42 = 15,848.04 : x
  2. Step 2: Convert to fraction form
    20,103.90/27,711.42 = 15,848.04/x
  3. Step 3: Cross multiply
    20,103.90x = 27,711.42 × 15,848.04
  4. Step 4: Simplify right side
    20,103.90x = 439,171,692.62
  5. Step 5: Solve for x
    x = 439,171,692.62/20,103.90
  6. Step 6: Final answer
    x = 21,845.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.