Home / 18,399.84-27,548.52-15,742.64

Finding the Fourth Proportional to 18,399.84, 27,548.52 and 15,742.64

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Solution

The fourth proportional to 18,399.84, 27,548.52 and 15,742.64 is: 23,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.84 : 27,548.52 = 15,742.64 : x
  2. Step 2: Convert to fraction form
    18,399.84/27,548.52 = 15,742.64/x
  3. Step 3: Cross multiply
    18,399.84x = 27,548.52 × 15,742.64
  4. Step 4: Simplify right side
    18,399.84x = 433,686,432.89
  5. Step 5: Solve for x
    x = 433,686,432.89/18,399.84
  6. Step 6: Final answer
    x = 23,570.12

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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.