Home / 18,538.56-25,583.08-10,040.49

Finding the Fourth Proportional to 18,538.56, 25,583.08 and 10,040.49

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Solution

The fourth proportional to 18,538.56, 25,583.08 and 10,040.49 is: 13,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.56 : 25,583.08 = 10,040.49 : x
  2. Step 2: Convert to fraction form
    18,538.56/25,583.08 = 10,040.49/x
  3. Step 3: Cross multiply
    18,538.56x = 25,583.08 × 10,040.49
  4. Step 4: Simplify right side
    18,538.56x = 256,866,480.79
  5. Step 5: Solve for x
    x = 256,866,480.79/18,538.56
  6. Step 6: Final answer
    x = 13,855.80

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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.