Home / 19,821.61-27,349.54-11,433.25

Finding the Fourth Proportional to 19,821.61, 27,349.54 and 11,433.25

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Solution

The fourth proportional to 19,821.61, 27,349.54 and 11,433.25 is: 15,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.61 : 27,349.54 = 11,433.25 : x
  2. Step 2: Convert to fraction form
    19,821.61/27,349.54 = 11,433.25/x
  3. Step 3: Cross multiply
    19,821.61x = 27,349.54 × 11,433.25
  4. Step 4: Simplify right side
    19,821.61x = 312,694,128.21
  5. Step 5: Solve for x
    x = 312,694,128.21/19,821.61
  6. Step 6: Final answer
    x = 15,775.42

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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.