Home / 20,193.03-27,870.21-13,374.99

Finding the Fourth Proportional to 20,193.03, 27,870.21 and 13,374.99

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Solution

The fourth proportional to 20,193.03, 27,870.21 and 13,374.99 is: 18,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.03 : 27,870.21 = 13,374.99 : x
  2. Step 2: Convert to fraction form
    20,193.03/27,870.21 = 13,374.99/x
  3. Step 3: Cross multiply
    20,193.03x = 27,870.21 × 13,374.99
  4. Step 4: Simplify right side
    20,193.03x = 372,763,780.05
  5. Step 5: Solve for x
    x = 372,763,780.05/20,193.03
  6. Step 6: Final answer
    x = 18,460.02

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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.