Home / 18,755.40-25,885.74-14,271.96

Finding the Fourth Proportional to 18,755.40, 25,885.74 and 14,271.96

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Solution

The fourth proportional to 18,755.40, 25,885.74 and 14,271.96 is: 19,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.40 : 25,885.74 = 14,271.96 : x
  2. Step 2: Convert to fraction form
    18,755.40/25,885.74 = 14,271.96/x
  3. Step 3: Cross multiply
    18,755.40x = 25,885.74 × 14,271.96
  4. Step 4: Simplify right side
    18,755.40x = 369,440,245.85
  5. Step 5: Solve for x
    x = 369,440,245.85/18,755.40
  6. Step 6: Final answer
    x = 19,697.81

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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.