Home / 38,660.24-57,986.71-12,357.92

Finding the Fourth Proportional to 38,660.24, 57,986.71 and 12,357.92

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Solution

The fourth proportional to 38,660.24, 57,986.71 and 12,357.92 is: 18,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.24 : 57,986.71 = 12,357.92 : x
  2. Step 2: Convert to fraction form
    38,660.24/57,986.71 = 12,357.92/x
  3. Step 3: Cross multiply
    38,660.24x = 57,986.71 × 12,357.92
  4. Step 4: Simplify right side
    38,660.24x = 716,595,237.32
  5. Step 5: Solve for x
    x = 716,595,237.32/38,660.24
  6. Step 6: Final answer
    x = 18,535.72

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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.