Home / 19,822.78-27,351.30-13,454.29

Finding the Fourth Proportional to 19,822.78, 27,351.30 and 13,454.29

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Solution

The fourth proportional to 19,822.78, 27,351.30 and 13,454.29 is: 18,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.78 : 27,351.30 = 13,454.29 : x
  2. Step 2: Convert to fraction form
    19,822.78/27,351.30 = 13,454.29/x
  3. Step 3: Cross multiply
    19,822.78x = 27,351.30 × 13,454.29
  4. Step 4: Simplify right side
    19,822.78x = 367,992,322.08
  5. Step 5: Solve for x
    x = 367,992,322.08/19,822.78
  6. Step 6: Final answer
    x = 18,564.11

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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.