Home / 19,129.10-28,673.89-13,851.02

Finding the Fourth Proportional to 19,129.10, 28,673.89 and 13,851.02

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Solution

The fourth proportional to 19,129.10, 28,673.89 and 13,851.02 is: 20,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.10 : 28,673.89 = 13,851.02 : x
  2. Step 2: Convert to fraction form
    19,129.10/28,673.89 = 13,851.02/x
  3. Step 3: Cross multiply
    19,129.10x = 28,673.89 × 13,851.02
  4. Step 4: Simplify right side
    19,129.10x = 397,162,660.92
  5. Step 5: Solve for x
    x = 397,162,660.92/19,129.10
  6. Step 6: Final answer
    x = 20,762.23

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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.