Home / 19,389.68-29,091.86-13,208.00

Finding the Fourth Proportional to 19,389.68, 29,091.86 and 13,208.00

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Solution

The fourth proportional to 19,389.68, 29,091.86 and 13,208.00 is: 19,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.68 : 29,091.86 = 13,208.00 : x
  2. Step 2: Convert to fraction form
    19,389.68/29,091.86 = 13,208.00/x
  3. Step 3: Cross multiply
    19,389.68x = 29,091.86 × 13,208.00
  4. Step 4: Simplify right side
    19,389.68x = 384,245,124.91
  5. Step 5: Solve for x
    x = 384,245,124.91/19,389.68
  6. Step 6: Final answer
    x = 19,816.99

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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.