Home / 18,311.03-27,391.34-14,620.47

Finding the Fourth Proportional to 18,311.03, 27,391.34 and 14,620.47

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Solution

The fourth proportional to 18,311.03, 27,391.34 and 14,620.47 is: 21,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.03 : 27,391.34 = 14,620.47 : x
  2. Step 2: Convert to fraction form
    18,311.03/27,391.34 = 14,620.47/x
  3. Step 3: Cross multiply
    18,311.03x = 27,391.34 × 14,620.47
  4. Step 4: Simplify right side
    18,311.03x = 400,474,191.63
  5. Step 5: Solve for x
    x = 400,474,191.63/18,311.03
  6. Step 6: Final answer
    x = 21,870.66

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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.