Home / 38,143.36-57,216.32-11,490.56

Finding the Fourth Proportional to 38,143.36, 57,216.32 and 11,490.56

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Solution

The fourth proportional to 38,143.36, 57,216.32 and 11,490.56 is: 17,236.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.36 : 57,216.32 = 11,490.56 : x
  2. Step 2: Convert to fraction form
    38,143.36/57,216.32 = 11,490.56/x
  3. Step 3: Cross multiply
    38,143.36x = 57,216.32 × 11,490.56
  4. Step 4: Simplify right side
    38,143.36x = 657,447,557.94
  5. Step 5: Solve for x
    x = 657,447,557.94/38,143.36
  6. Step 6: Final answer
    x = 17,236.23

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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.