Home / 25,144.78-34,699.67-13,659.60

Finding the Fourth Proportional to 25,144.78, 34,699.67 and 13,659.60

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Solution

The fourth proportional to 25,144.78, 34,699.67 and 13,659.60 is: 18,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,144.78 : 34,699.67 = 13,659.60 : x
  2. Step 2: Convert to fraction form
    25,144.78/34,699.67 = 13,659.60/x
  3. Step 3: Cross multiply
    25,144.78x = 34,699.67 × 13,659.60
  4. Step 4: Simplify right side
    25,144.78x = 473,983,544.03
  5. Step 5: Solve for x
    x = 473,983,544.03/25,144.78
  6. Step 6: Final answer
    x = 18,850.18

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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.