Home / 38,259.28-57,390.52-11,964.56

Finding the Fourth Proportional to 38,259.28, 57,390.52 and 11,964.56

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Solution

The fourth proportional to 38,259.28, 57,390.52 and 11,964.56 is: 17,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,259.28 : 57,390.52 = 11,964.56 : x
  2. Step 2: Convert to fraction form
    38,259.28/57,390.52 = 11,964.56/x
  3. Step 3: Cross multiply
    38,259.28x = 57,390.52 × 11,964.56
  4. Step 4: Simplify right side
    38,259.28x = 686,652,319.97
  5. Step 5: Solve for x
    x = 686,652,319.97/38,259.28
  6. Step 6: Final answer
    x = 17,947.34

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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.