Home / 18,405.03-27,565.48-14,447.28

Finding the Fourth Proportional to 18,405.03, 27,565.48 and 14,447.28

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Solution

The fourth proportional to 18,405.03, 27,565.48 and 14,447.28 is: 21,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.03 : 27,565.48 = 14,447.28 : x
  2. Step 2: Convert to fraction form
    18,405.03/27,565.48 = 14,447.28/x
  3. Step 3: Cross multiply
    18,405.03x = 27,565.48 × 14,447.28
  4. Step 4: Simplify right side
    18,405.03x = 398,246,207.89
  5. Step 5: Solve for x
    x = 398,246,207.89/18,405.03
  6. Step 6: Final answer
    x = 21,637.90

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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.