Home / 18,629.54-27,962.67-13,685.30

Finding the Fourth Proportional to 18,629.54, 27,962.67 and 13,685.30

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Solution

The fourth proportional to 18,629.54, 27,962.67 and 13,685.30 is: 20,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.54 : 27,962.67 = 13,685.30 : x
  2. Step 2: Convert to fraction form
    18,629.54/27,962.67 = 13,685.30/x
  3. Step 3: Cross multiply
    18,629.54x = 27,962.67 × 13,685.30
  4. Step 4: Simplify right side
    18,629.54x = 382,677,527.75
  5. Step 5: Solve for x
    x = 382,677,527.75/18,629.54
  6. Step 6: Final answer
    x = 20,541.44

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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.