Home / 38,273.78-57,436.78-13,313.58

Finding the Fourth Proportional to 38,273.78, 57,436.78 and 13,313.58

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Solution

The fourth proportional to 38,273.78, 57,436.78 and 13,313.58 is: 19,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,273.78 : 57,436.78 = 13,313.58 : x
  2. Step 2: Convert to fraction form
    38,273.78/57,436.78 = 13,313.58/x
  3. Step 3: Cross multiply
    38,273.78x = 57,436.78 × 13,313.58
  4. Step 4: Simplify right side
    38,273.78x = 764,689,165.47
  5. Step 5: Solve for x
    x = 764,689,165.47/38,273.78
  6. Step 6: Final answer
    x = 19,979.45

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1.5x scale

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.