Home / 18,381.48-25,380.74-14,125.79

Finding the Fourth Proportional to 18,381.48, 25,380.74 and 14,125.79

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Solution

The fourth proportional to 18,381.48, 25,380.74 and 14,125.79 is: 19,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.48 : 25,380.74 = 14,125.79 : x
  2. Step 2: Convert to fraction form
    18,381.48/25,380.74 = 14,125.79/x
  3. Step 3: Cross multiply
    18,381.48x = 25,380.74 × 14,125.79
  4. Step 4: Simplify right side
    18,381.48x = 358,523,102.05
  5. Step 5: Solve for x
    x = 358,523,102.05/18,381.48
  6. Step 6: Final answer
    x = 19,504.58

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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.