Home / 30,623.22-45,913.20-11,887.68

Finding the Fourth Proportional to 30,623.22, 45,913.20 and 11,887.68

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Solution

The fourth proportional to 30,623.22, 45,913.20 and 11,887.68 is: 17,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,623.22 : 45,913.20 = 11,887.68 : x
  2. Step 2: Convert to fraction form
    30,623.22/45,913.20 = 11,887.68/x
  3. Step 3: Cross multiply
    30,623.22x = 45,913.20 × 11,887.68
  4. Step 4: Simplify right side
    30,623.22x = 545,801,429.38
  5. Step 5: Solve for x
    x = 545,801,429.38/30,623.22
  6. Step 6: Final answer
    x = 17,823.12

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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.