Home / 38,665.46-53,362.08-21,672.59

Finding the Fourth Proportional to 38,665.46, 53,362.08 and 21,672.59

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Solution

The fourth proportional to 38,665.46, 53,362.08 and 21,672.59 is: 29,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.46 : 53,362.08 = 21,672.59 : x
  2. Step 2: Convert to fraction form
    38,665.46/53,362.08 = 21,672.59/x
  3. Step 3: Cross multiply
    38,665.46x = 53,362.08 × 21,672.59
  4. Step 4: Simplify right side
    38,665.46x = 1,156,494,481.39
  5. Step 5: Solve for x
    x = 1,156,494,481.39/38,665.46
  6. Step 6: Final answer
    x = 29,910.27

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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.