Home / 19,725.36-27,209.08-13,008.56

Finding the Fourth Proportional to 19,725.36, 27,209.08 and 13,008.56

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Solution

The fourth proportional to 19,725.36, 27,209.08 and 13,008.56 is: 17,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.36 : 27,209.08 = 13,008.56 : x
  2. Step 2: Convert to fraction form
    19,725.36/27,209.08 = 13,008.56/x
  3. Step 3: Cross multiply
    19,725.36x = 27,209.08 × 13,008.56
  4. Step 4: Simplify right side
    19,725.36x = 353,950,949.72
  5. Step 5: Solve for x
    x = 353,950,949.72/19,725.36
  6. Step 6: Final answer
    x = 17,943.95

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1.5x scale

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.