Home / 34,980.49-48,273.33-20,640.61

Finding the Fourth Proportional to 34,980.49, 48,273.33 and 20,640.61

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Solution

The fourth proportional to 34,980.49, 48,273.33 and 20,640.61 is: 28,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,980.49 : 48,273.33 = 20,640.61 : x
  2. Step 2: Convert to fraction form
    34,980.49/48,273.33 = 20,640.61/x
  3. Step 3: Cross multiply
    34,980.49x = 48,273.33 × 20,640.61
  4. Step 4: Simplify right side
    34,980.49x = 996,390,977.93
  5. Step 5: Solve for x
    x = 996,390,977.93/34,980.49
  6. Step 6: Final answer
    x = 28,484.19

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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.