Home / 22,428.78-30,951.54-13,481.22

Finding the Fourth Proportional to 22,428.78, 30,951.54 and 13,481.22

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Solution

The fourth proportional to 22,428.78, 30,951.54 and 13,481.22 is: 18,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.78 : 30,951.54 = 13,481.22 : x
  2. Step 2: Convert to fraction form
    22,428.78/30,951.54 = 13,481.22/x
  3. Step 3: Cross multiply
    22,428.78x = 30,951.54 × 13,481.22
  4. Step 4: Simplify right side
    22,428.78x = 417,264,520.08
  5. Step 5: Solve for x
    x = 417,264,520.08/22,428.78
  6. Step 6: Final answer
    x = 18,603.98

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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.