Home / 19,315.91-28,967.72-18,055.10

Finding the Fourth Proportional to 19,315.91, 28,967.72 and 18,055.10

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Solution

The fourth proportional to 19,315.91, 28,967.72 and 18,055.10 is: 27,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.91 : 28,967.72 = 18,055.10 : x
  2. Step 2: Convert to fraction form
    19,315.91/28,967.72 = 18,055.10/x
  3. Step 3: Cross multiply
    19,315.91x = 28,967.72 × 18,055.10
  4. Step 4: Simplify right side
    19,315.91x = 523,015,198.93
  5. Step 5: Solve for x
    x = 523,015,198.93/19,315.91
  6. Step 6: Final answer
    x = 27,076.92

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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.