Home / 25,629.09-38,460.78-8,989.13

Finding the Fourth Proportional to 25,629.09, 38,460.78 and 8,989.13

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Solution

The fourth proportional to 25,629.09, 38,460.78 and 8,989.13 is: 13,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,629.09 : 38,460.78 = 8,989.13 : x
  2. Step 2: Convert to fraction form
    25,629.09/38,460.78 = 8,989.13/x
  3. Step 3: Cross multiply
    25,629.09x = 38,460.78 × 8,989.13
  4. Step 4: Simplify right side
    25,629.09x = 345,728,759.02
  5. Step 5: Solve for x
    x = 345,728,759.02/25,629.09
  6. Step 6: Final answer
    x = 13,489.70

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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.